TR11G8: Crystals combine faces of cube and octahedron. Lilac color and transparency are very good. On the matrix there are some Tetrahedrite crystals and small formations of Calcite and Chalcopyrite.
Mina San Martín, Sombrerete, Zacatecas  Mexico (01/2005)

Specimen size: 7.4 × 5 × 4.8 cm = 2.9” × 2.0” × 1.9”

Main crystal size: 1.3 × 0.9 cm = 0.5” × 0.4”

FX26: Good and sharp Tennantite crystal faces, good disposition on the white Quartz matrix. As frequent in Oliete's specimens: a good esthetic choice. Minor Pyrite is also present.
Mina El Cobre, Concepción del Oro, Zacatecas  Mexico

Specimen size: 7 × 5 × 6.7 cm = 2.8” × 2.0” × 2.6”

Main crystal size: 1.4 × 0.9 cm = 0.6” × 0.4”

AP50T7: Centered and parallel growths of very aerial and elongated crystals. They have well defined faces and edges and hollow growths, with a matrix of Calcite crystals. Great sample from the Silvane collection, with a wide pedigree reflected on several labels, one of them from the prestigious Bill and Carol Smith collection, which we’ll send to the buyer.
San Luis shaft, level 480, Fresnillo de González Echeverría (Fresnillo), Municipio Fresnillo, Zacatecas  Mexico

Specimen size: 6 × 4.3 × 2.2 cm = 2.4” × 1.7” × 0.9”

Main crystal size: 1 × 0.2 cm = 0.4” × 0.1”

MY99AC8: Rounded aggregates of short prismatic Pyrargyrite crystals with very well defined faces and edges and some of them are doubly terminated. They are reddish and are on a matrix with spheroidal aggregates of small scalenohedral Calcite and Quartz crystals. A Mexican classic.
Proaño Mine, Fresnillo de González Echeverría (Fresnillo), Municipio Fresnillo, Zacatecas  Mexico

Specimen size: 5.7 × 5.3 × 5.1 cm = 2.2” × 2.1” × 2.0”

Main crystal size: 1.2 × 0.4 cm = 0.5” × 0.2”

ET16X1: Two single crystals, one of them clearly dominant, that combine two vertical prisms, a very sharp pinacoid and some smaller forms. The crystals, translucent and with an intense color that is deeper on the terminations and on the edges, are on a matrix of volcanic rock with spheroidal growths of Opal.
Mina Artroyos, Potrillos, Coneto de Comonfort, Durango  Mexico (±1970)

Specimen size: 2.6 × 2.4 × 1.7 cm = 1.0” × 0.9” × 0.7”

Main crystal size: 1.7 × 1.3 cm = 0.7” × 0.5”

MA50K1: Very well defined crystals, one of them clearly dominant and of considerable length and with very good color and luster on a matrix which is a Chalcedony formation, uncommon for Cerro de Mercado specimens.
Mina Cerro de Mercado, Cerro de los Remedios, Victoria de Durango, Municipio de Durango, Durango  Mexico

Specimen size: 11.2 × 8.5 × 7 cm = 4.4” × 3.3” × 2.8”

Main crystal size: 5.3 × 1.5 cm = 2.1” × 0.6”

TM26D8: While this locality has produced lots of material and quite often produces good ones, this octahedral Fluorite is really nice. This is due to the crystal size, their definition and the intensity of their color. A major sample for a reasonable price.
Mina Navidad, Abasolo, Rodeo, Municipio de Rodeo, Durango  Mexico (2003)

Specimen size: 12.2 × 10.5 × 3 cm = 4.8” × 4.1” × 1.2”

Main crystal size: 2.9 × 2.4 cm = 1.1” × 0.9”

TV66K0: Group of white prismatic crystals, very well defined and bright, on a dark matrix partially limonitized. On the lower part of the crystals there is a black phantom zonation.
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico

Specimen size: 7.5 × 7.3 × 3.4 cm = 3.0” × 2.9” × 1.3”

Main crystal size: 2.9 × 0.7 cm = 1.1” × 0.3”

TD67Q1: Clear green botryoidal aggregate on matrix. We note the excellent quality of this sample considering its locality of origin.
San Antonio Mine (San Antonio el Grande Mine), level 8, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (±1990)

Specimen size: 9.1 × 7.1 × 4.5 cm = 3.6” × 2.8” × 1.8”

TR90AA2: Botryoidal growths on a limonite matrix of crystalline surfaces with a clear yellow color with slightly greenish shades and an intense silky luster. We especially note the uniform quality of the Smithsonite, very rare in a sample of this size.
San Antonio Mine (San Antonio el Grande Mine), East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (11/2012)

Specimen size: 15.8 × 9.2 × 6.9 cm = 6.2” × 3.6” × 2.7”

TA96Y0: A novelty at St. Marie 2013. Astounding Smithsonites replacing Calcite. They show successive replacement shells indicating that the Calcite was partially replaced, some was dissolved and the next layer was attacked. Its color, its size and shape make these specimens one of the great finds of 2013. We'll send a copy of the analysis of the Smithsonite to the buyer.
San Antonio Mine (San Antonio el Grande Mine), level 8, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (04/2013)

Specimen size: 4.8 × 3.8 × 3.2 cm = 1.9” × 1.5” × 1.3”

Main crystal size: 2.2 × 1.7 cm = 0.9” × 0.7”

TF47Y1: A novelty at St. Marie 2013. Astounding Smithsonites replacing Calcite. They show successive replacement shells indicating that the Calcite was only partially replaced during a first phase, and later completely replaced by Smithsonite. Its color, size and shape make these specimens one of the great finds of 2013. We'll send a copy of the analysis of the Smithsonite to the buyer.
San Antonio Mine (San Antonio el Grande Mine), level 8, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (04/2013)

Specimen size: 5.7 × 4.7 × 3 cm = 2.2” × 1.9” × 1.2”

Main crystal size: 2.6 × 1.2 cm = 1.0” × 0.5”

TE7Y0: A novelty at St. Marie 2013. Astounding Smithsonites replacing Calcite. They show successive replacement shells indicating that the Calcite was partially replaced, some was dissolved and the next layer was attacked. Its color, its size and shape make these specimens one of the great finds of 2013. We'll send a copy of the analysis of the Smithsonite to the buyer.
This specimen was published on the Mineralogical Record´s web page, in the ‘What’s New in the Mineral World?’ section, report #35, August 14, 2013 edition.
San Antonio Mine (San Antonio el Grande Mine), level 8, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (04/2013)

Specimen size: 6.2 × 4.1 × 2.9 cm = 2.4” × 1.6” × 1.1”

Main crystal size: 2.3 × 1.1 cm = 0.9” × 0.4”

TP98Y0: A novelty at St. Marie 2013. Astounding Smithsonites replacing Calcite. They show successive replacement shells indicating that the Calcite was partially replaced, some was dissolved and the next layer was attacked. Its color, its size and shape make these specimens one of the great finds of 2013. We'll send a copy of the analysis of the Smithsonite to the buyer.
San Antonio Mine (San Antonio el Grande Mine), level 8, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (04/2013)

Specimen size: 8.9 × 5.9 × 4.5 cm = 3.5” × 2.3” × 1.8”

Main crystal size: 3.3 × 1.5 cm = 1.3” × 0.6”

TE13AF1: Botryoidal Rhodochrosite with a vivid pink color and on matrix, with Galena and Pyrrhotite crystals.
Potosí Mine, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico

Specimen size: 3.5 × 2.6 × 1.8 cm = 1.4” × 1.0” × 0.7”

Main crystal size: 0.9 × 0.9 cm = 0.4” × 0.4”

TR27Z8: Vug, on a rocky matrix, filled by short prismatic crystals with flat rhombohedral terminations. The crystals are transparent, bright, with very uniform color and have small, pale yellow, globular coatings, probably Smithsonite.
Potosí Mine, level 10, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (19/09/2013)

Specimen size: 4.6 × 3.8 × 1.4 cm = 1.8” × 1.5” × 0.6”

Main crystal size: 0.3 × 0.2 cm = 0.1” × 0.1”

TB26N4: Superficial growths and rhombohedral crystals of uniform pink color with clear sharp crystals of Quartz.
Mina El Potosí, Nivel 10, Santa Eulalia, Aquiles Serdán, Chihuahua  Mexico (2008)

Specimen size: 4.4 × 2.5 × 2.4 cm = 1.7” × 1.0” × 0.9”

TP96F6: The complex and numerous faces frame the octahedral crystals, which are considerably transparent and a neat lilac color that contrasts with the scalenohedra of Calcite. While Fluorite from this locality is known, it is not normally of this quality.
This sample has been noted and photographed in the Mineralogical Record magazine (January-February 2018, pg. 92)
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico

Specimen size: 5.6 × 5.5 × 4.8 cm = 2.2” × 2.2” × 1.9”

Main crystal size: 2.2 × 2 cm = 0.9” × 0.8”

CA17F2: The group is very rich in classic violet crystals so typical of this locality, with ochre zones caused by iron oxides. Nowadays it is very difficult to obtain Creedite from Santa Eulalia.
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico

Specimen size: 8 × 5.5 × 3.5 cm = 3.1” × 2.2” × 1.4”

Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2”

TC56W7: Elongated crystals with pyramidal terminations and a very intense yellow color, bright and on a limonite matrix. It comes from a specific find in shaft 5 at Santa Eulalia.
Shaft 5, Santa Eulalia, Aquiles Serdán, Chihuahua  Mexico

Specimen size: 5.9 × 4 × 1.4 cm = 2.3” × 1.6” × 0.6”

Main crystal size: 0.5 × 0.1 cm = 0.2” × 0.0”

TD14V4: A novelty at Tucson 2012. Unusual crystalline shape for the Vanadinite, whose aggregates are formed by dipyramidal crystals of very well defined faces and edges. They show a creamy color and are on matrix.
Chimenea Cox, Mina San Antonio, Nivel 4, Santa Eulalia, Chihuahua  Mexico (2011)

Specimen size: 3.7 × 2.8 × 2.2 cm = 1.5” × 1.1” × 0.9”

Main crystal size: 0.8 × 0.2 cm = 0.3” × 0.1”

TZ26F3: This is a really great sample, very esthetic, with the branches of the Silver very aerial, and clearly showing the Spinel twinning. This form is not that uncommon in the silvers from Mexico, but it is not normally this obvious. So, as we said, a great one.
The specimen has been reviewed, photographed and published in the magazine ‘Rivista Mineralogica Italiana’ on page 245 in number 2005/4.
San Antonio Mine, Cerro de las Animas, Todos Santos-Roncevalles, Batopilas, Andrés del Río District, Municipio Batopilas, Chihuahua  Mexico

Specimen size: 7 × 3.2 × 2.9 cm = 2.8” × 1.3” × 1.1”

Main crystal size: 4.8 × 0.7 cm = 1.9” × 0.3”

TY36L3: Thick tabular crystal group, perfectly defined, very bright, with the best color known for this locality. Crystals are positioned on a small matrix of Limonite with a very aerial shape.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 2.9 × 2.5 × 1.6 cm = 1.1” × 1.0” × 0.6”

Main crystal size: 1.6 × 1 cm = 0.6” × 0.4”

MR67AC8: Aggregate of thick tabular crystals with very well defined faces and edges. They are bright, have a very vivid color and are partially coated by Mimetite-Pyromorphite (solid solution) forming a crust with a color between pale green and yellow. We'll send copy of the analysis to the buyer.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 6 × 5.2 × 2.4 cm = 2.4” × 2.0” × 0.9”

Main crystal size: 0.8 × 0.7 cm = 0.3” × 0.3”

MB96AB8: Very well defined crystals, between tabular and dipyramidal, with polycrystalline terminations, very well defined with an intense color and on a Calcite matrix.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 6.5 × 5 × 3.5 cm = 2.6” × 2.0” × 1.4”

Main crystal size: 0.6 × 0.6 cm = 0.2” × 0.2”

FA66J5: Isolated tabular crystal of excellent color on matrix of microcrystalline Willemite. Willlemite is known from Los Lamentos, but it is rare for the locality. The specimen is from Martín Oliete collection and we’ll send the collection card to the buyer of the sample.

Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico (1982)

Specimen size: 7.1 × 4.9 × 4.9 cm = 2.8” × 1.9” × 1.9”

Main crystal size: 0.9 × 0.8 cm = 0.4” × 0.3”

TK46AE9: Aggregate of tabular crystals, translucent and with an unusual quality on its color, luster and size. They are on matrix and with Calcite. The sample, of great quality, is especially aesthetic.
Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 11.7 × 6.7 × 3.6 cm = 4.6” × 2.6” × 1.4”

Main crystal size: 1.7 × 1.3 cm = 0.7” × 0.5”

EE89V9: Notable aggregate of tabular crystals of Wulfenite. They have an orange-yellow color, a darker horizontal geometrical color zoning and they are on limonite matrix.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico (1970-1980)

Specimen size: 13 × 10 × 8.5 cm = 5.1” × 3.9” × 3.3”

Main crystal size: 1.1 × 0.9 cm = 0.4” × 0.4”

ME47AF3: Irregular aggregate of greatly elongated crystals with a spindle-like shape, most of them doubly terminated with very acute pyramidal terminations. The crystals are brighter than usual for Los Lamentos and have a dark greenish-brown color. These Vanadinites, whose arsenic content is quite higher than usual, are well known as the endlichite variety.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 4.9 × 3.6 × 3.1 cm = 1.9” × 1.4” × 1.2”

Main crystal size: 0.6 × 0.2 cm = 0.2” × 0.1”

TX97Q8: Very aerial group of crystals, most of them doubly terminated, with hollowed terminations, pale orange color, and with small crystals of Calcite, on matrix. We especially note, as unusual, the locality.
The sample is from the Gary Murdock collection, whose label we will send to the buyer.
Mina San Carlos (Mina Apex), San Carlos, Manuel Benavides, Chihuahua  Mexico

Specimen size: 6 × 3.9 × 3.5 cm = 2.4” × 1.5” × 1.4”

Main crystal size: 0.6 × 0.4 cm = 0.2” × 0.2”

EZ68W7: Aggregate of crystals with parallel growths, hollow terminations and typical brown color. In spite of its color this Vanadinite should not be confused with the arsenical Vanadinite (endlichite variety) from Los Lamentos.
Mina San Carlos (Mina Apex), San Carlos, Manuel Benavides, Chihuahua  Mexico (1960-1970)

Specimen size: 10.3 × 7 × 3.4 cm = 4.1” × 2.8” × 1.3”

Main crystal size: 1 × 0.5 cm = 0.4” × 0.2”

TF67N0: From a very uncommon and not well-known locality in Chihuahua. The main group forms a rosette of very platy crystals, that are bright, of a very deep color and implanted on a Dolomite matrix.
Sierra Rica, Municipio Manuel Benavides, Chihuahua  Mexico

Specimen size: 5.7 × 4 × 3.7 cm = 2.2” × 1.6” × 1.5”

Main crystal size: 1.7 × 1.3 cm = 0.7” × 0.5”

TQ16H3: The Calcite crystal has simple forms but has a completely recrystallized surface emphasizing the esthetic effect on matrix rich of Galena, Pyrite and Calcite. Specimen with pedigree, as labels of first supplier and collection of origin shows (they misidentified the species, which appears as Dolomite)
Naica, Municipio Saucillo, Chihuahua  Mexico

Specimen size: 11 × 5.3 × 5..2 cm = 4.3” × 2.1” × 2.0”

Main crystal size: 4 × 4 cm = 1.6” × 1.6”

TP86R9: Groups of transparent cubic crystals of a deeper color than usual for this kind of sample. The crystals show surfaces with polycrystalline growths on the octahedron faces and are implanted on a matrix with bright cub-octahedral crystals of Galena.
The sample is from the prestigious collection of Dr. Marvin D. Rausch (Massachusetts), whose label we'll send to the buyer.
Naica, Municipio Saucillo, Chihuahua  Mexico (±1986)

Specimen size: 15 × 13 × 11 cm = 5.9” × 5.1” × 4.3”

Main crystal size: 7.2 × 6.6 cm = 2.8” × 2.6”

MZ87S7: Very well defined globular growths of Mimetite with a particularly intense yellow color and on Limonite matrix.
San Pedro Corralitos, Casas Grandes, Chihuahua  Mexico

Specimen size: 6.2 × 4.2 × 1.2 cm = 2.4” × 1.7” × 0.5”

Main crystal size: 0.7 × 0.6 cm = 0.3” × 0.2”

TP27AD1: A novelty at Tucson 2016. Scalenohedral Calcite crystals with very well defined faces and edges and with very well defined polycrystalline growth. The crystals, translucent, with a snowy white color and with a silky luster, are implanted on a matrix with Quartz and Pyrite.
San Diego Mine, Santa Bárbara, Municipio Santa Bárbara, Chihuahua  Mexico (11/2015)

Specimen size: 9.8 × 7.8 × 5.2 cm = 3.9” × 3.1” × 2.0”

Main crystal size: 7.8 × 6.7 cm = 3.1” × 2.6”

TB62AG9: A novelty at Tucson 2017. Thick lenticular Calcite crystals with very well defined faces and edges. They are translucent with parallel growths and an easily visible interpenetration twin. They have grown around acute scalenohedral crystals of a first Calcite generation that are coated by Palygorskite. The related black material are manganese oxides.
Palmarejo Mine, Palmarejo, Municipio Chinipas, Chihuahua  Mexico (10/2016)

Specimen size: 18.3 × 10.7 × 10 cm = 7.2” × 4.2” × 3.9”

Main crystal size: 6.5 × 4.8 cm = 2.6” × 1.9”

TE56R1: A very well defined botryoidal aggregate. It has a matte luster and is on a rocky matrix. We present it as a novelty due to the knowledge of the exact place of the find, unusually precise. This material has been analyzed by Marcus Origlieri at the University of Arizona.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘‘Mineral Up’’ on page 26 in number 2010/2
Km 2 road Chihuahua -> Cuauhtémoc, Ciudad Chihuahua, Chihuahua  Mexico (2010)

Specimen size: 9 × 7 × 5.2 cm = 3.5” × 2.8” × 2.0”

TB86R1: A very well defined botryoidal aggregate. It has a matte luster and is on a rocky matrix. We present it as a novelty due to the knowledge of the exact place of the find, unusually precise. This material has been analyzed by Marcus Origlieri at the University of Arizona.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Rivista Mineralogica Italiana’ on page 264 in number 2010/4
Km 2 road Chihuahua -> Cuauhtémoc, Ciudad Chihuahua, Chihuahua  Mexico (2010)

Specimen size: 9 × 7.8 × 5.2 cm = 3.5” × 3.1” × 2.0”

TY16I2: Two main crystals have very sharp scepter growths. The crystal on the left forms an inverse scepter from the prism on the base and finishes with a very well-defined normal scepter.
Previously in the Thomas Moore collection.
Liliana Mine, Municipio Chihuahua, Chihuahua  Mexico

Specimen size: 3 × 2.9 × 1.9 cm = 1.2” × 1.1” × 0.7”

Main crystal size: 2 × 0.6 cm = 0.8” × 0.2”

HA7N4: Group of crystals, some of them doubly terminated and some with scepter growths but all them with good transparency, color zoning and excellent luster. They are on matrix.
The sample is from Martí Rafel collection whose label will be sent to the buyer.
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico

Specimen size: 4.4 × 3 × 3 cm = 1.7” × 1.2” × 1.2”

Main crystal size: 2.6 × 0.8 cm = 1.0” × 0.3”

TB7B6: Sharp crystal with a deep color on a small matrix of Epidote, but the highlight of this specimen are the series of phantoms close to the top of the specimen. It is as good as it looks (or maybe even better)
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico

Specimen size: 6 × 3 cm = 2.4” × 1.2”

TR67Y3: Group of crystals, one of them clearly dominant and partially doubly terminated, transparent, with a very uniform color and on a matrix of Calcite crystals, very uncommon with Las Vigas samples.
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico

Specimen size: 6.2 × 4.1 × 4.7 cm = 2.4” × 1.6” × 1.9”

Main crystal size: 2.9 × 1.5 cm = 1.1” × 0.6”

TY96P1: A very esthetic group of crystals on matrix. The crystals have very well defined faces and edges and are very transparent, bright and a uniform and intense color.
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico

Specimen size: 6.3 × 4.4 × 3.7 cm = 2.5” × 1.7” × 1.5”

Main crystal size: 2.4 × 1 cm = 0.9” × 0.4”

TF56L5: A group of transparent and excellent color Fluorite cubic crystals whose faces show polysynthetic growths, that gives to the specimen an aesthetic appearance. Very aerial and on matrix.
Tule Mine, Melchor Múzquiz, Coahuila de Zaragoza  Mexico

Specimen size: 7.7 × 5.6 × 4.8 cm = 3.0” × 2.2” × 1.9”

Main crystal size: 2.5 × 2.2 cm = 1.0” × 0.9”

FX96D3: It seems blocky but, although the photo doesn't shows it that well, this classic Vesuvianite has neither bad form nor poor luster, and it clearly does have good color.
Sierra de las Cruces, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico (±1972)

Specimen size: 4.5 × 3.5 × 3.5 cm = 1.8” × 1.4” × 1.4”

TC98D6: Great crystal that is intensely blue and has very brilliant faces, so this Boleite is very representative of the species and locality.
Mina Amelia, Santa Rosalía, Boleo, Baja California Sur  Mexico

Specimen size: 3.5 × 2.5 × 2.5 cm = 1.4” × 1.0” × 1.0”

Main crystal size: 0.5 × 0.5 cm = 0.2” × 0.2”

TY88Q0: A novelty at Tucson 2010. This group of cubic crystals of Boleite was discovered in recent work in the classic Santa Amelia mine. The crystals are sharp, with very well defined faces and edges, bright and with a deep color on a Quartz matrix rich with Gypsum, with minor Brochantite.
Mina Amelia, Santa Rosalía, Boleo, Baja California Sur  Mexico (03-09/2009)

Specimen size: 5.5 × 4.4 × 2.4 cm = 2.2” × 1.7” × 0.9”

Main crystal size: 0.7 × 0.6 cm = 0.3” × 0.2”

TZ87W8: The sample is from the type locality for the species. It consists of a very sharp and aerial cubic crystal of boleite upon which "plates" of Pseudoboleite have grown epitactically on each cube face. The matrix has been reinforced because it is unstable.
Mina Amelia, Santa Rosalía, Boleo, Baja California Sur  Mexico

Specimen size: 5.9 × 4.7 × 3.6 cm = 2.3” × 1.9” × 1.4”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”

TN6AD0: A novelty at Tucson 2016. Very sharp cubic Boleite crystal, bright and with a very deep color,on a limonite matrix and implanted on a surface of green Paratacamite microcrystals, with Gypsum. The sample is from recent preparation works at the mine.
Amelia Mine, Santa Rosalía (El Boleo), Boleo District, Municipio Mulegé, Baja California Sur  Mexico (2016)

Specimen size: 6.6 × 3.7 × 2.8 cm = 2.6” × 1.5” × 1.1”

Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1”

TF13S0: A novelty at Tucson 2011. Spheroidal aggregates on matrix of Chrysocolla pseudomorphous after cubic crystals of Boleite. This rare pseudomorph was discovered a few years ago, on much paler samples, in an area nearer to the Amelia Mine (not at the mine itself) but until the end of 2010 they have not been able to recover new specimens.
Manto 3, Santa Rosalía (El Boleo), Boleo District, Municipio Mulegé, Baja California Sur  Mexico (10-12/2010)

Specimen size: 2.7 × 1.8 × 1.7 cm = 1.1” × 0.7” × 0.7”

Main crystal size: 0.8 × 0.6 cm = 0.3” × 0.2”

TJ76X3: Aggregate, on matrix, of Chrysocolla pseudomorphs after cubo-octahedral Boleite crystals. This rare pseudomorph was discovered a few years ago in an area near Amelia (not in the mine itself), but until the end of 2010 new samples had not been recovered.
Manto 3, Santa Rosalía (El Boleo), Boleo District, Municipio Mulegé, Baja California Sur  Mexico (10-12/2010)

Specimen size: 3.2 × 2.6 × 1.5 cm = 1.3” × 1.0” × 0.6”

Main crystal size: 0.5 × 0.5 cm = 0.2” × 0.2”

TX6S7: Aggregates on matrix of Chrysocolla pseudomorphous after cubo-octahedral crystals of Boleite. This rare pseudomorph was discovered few years ago, but on paler samples, in an area near Amelia (not in the mine itself), but until the end of 2010 new samples had not been recovered.
Manto 3, Santa Rosalía (El Boleo), Boleo District, Municipio Mulegé, Baja California Sur  Mexico (10-12/2010)

Specimen size: 5.2 × 1.6 × 3.2 cm = 2.0” × 0.6” × 1.3”

Main crystal size: 0.2 × 0.2 cm = 0.1” × 0.1”

TP27S0: A novelty at Tucson 2011. Spheroidal aggregates on matrix of Chrysocolla pseudomorphous after cubo-octahedral crystals of Boleite. This rare pseudomorph was discovered a few years ago, on much paler samples, in an area nearer to the Amelia Mine (not at the mine itself) but until the end of 2010 they have not been able to recover new specimens.
Manto 3, Santa Rosalía (El Boleo), Boleo District, Municipio Mulegé, Baja California Sur  Mexico (10-12/2010)

Specimen size: 5.4 × 3.8 × 2.3 cm = 2.1” × 1.5” × 0.9”

Main crystal size: 0.7 × 0.7 cm = 0.3” × 0.3”

EA56Y4: Druse, on matrix, of crystals showing very well defined faces and edges, between translucent and transparent and excellently preserved.
San Felipe, Mexicali, Baja California  Mexico (1970-1980)

Specimen size: 8.7 × 6.7 × 4.7 cm = 3.4” × 2.6” × 1.9”

Main crystal size: 1 × 0.5 cm = 0.4” × 0.2”

TD76L5: Group of Legrandite crystals with perfect terminations. Luster, color intensity and transparency increase from the base to the upper termination. On botryoidal Smithsonite and all on a Limonite matrix.
The specimen has been reviewed and published in the magazine ‘Lapis’ on page 41, volume 33, number 7-8, August 2008.
Flor de Peña Mine, Lampazos (Lampazos de Naranjo), Municipio Lampazos (Lampazos de Naranjo), Nuevo Leon  Mexico

Specimen size: 4.7 × 4.5 × 3.2 cm = 1.9” × 1.8” × 1.3”

Main crystal size: 0.6 × 0.2 cm = 0.2” × 0.1”

TM87K8: Group of prismatic crystals with uncommon flat terminations. Good color and brilliance making a high contrast with the dark Limonite matrix. The specimen, from the type locality, has a different habit than the more common Mapimí Legrandites.
The specimen has been reviewed and published in the magazine ‘Lapis’ on page 41, volume 33, number 7-8, August 2008.
Flor de Peña Mine, Lampazos (Lampazos de Naranjo), Municipio Lampazos (Lampazos de Naranjo), Nuevo Leon  Mexico

Specimen size: 6 × 3.3 × 1.4 cm = 2.4” × 1.3” × 0.6”

Main crystal size: 0.8 × 0.3 cm = 0.3” × 0.1”

TA47P9: The sample is from the Flor de Peña Mine, the type locality. The small crystals with very well defined faces and edges, form sheaf like growths on a matrix partially coated by botryoidal yellowish-white Smithsonite. Color and luster of the Legrandite crystals are excellent.
Flor de Peña Mine, Lampazos (Lampazos de Naranjo), Municipio Lampazos (Lampazos de Naranjo), Nuevo Leon  Mexico

Specimen size: 8 × 4 × 3.8 cm = 3.1” × 1.6” × 1.5”

Main crystal size: 0.9 × 0.4 cm = 0.4” × 0.2”

TC40J7: The short prismatic crystals on dark Smithsonite matrix, that we analyzed, are very sharp and have an unusual transparency for the species. The different groups of crystals have two different shades of yellow. With the specimen we’ll send a copy of the analysis of the Smithsonite.
Flor de Peña Mine, Lampazos (Lampazos de Naranjo), Municipio Lampazos (Lampazos de Naranjo), Nuevo Leon  Mexico

Specimen size: 8.1 × 5.3 × 5.3 cm = 3.2” × 2.1” × 2.1”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”

FR76: Unusual form: first elongated crystals and then pseudocubic sharp crystals. As in many other cases in this collection, different from the usual.
La Sirena Mine, 590 level, Guanajuato, Municipio Guanajuato  Mexico

Specimen size: 4 × 3.2 × 2.7 cm = 1.6” × 1.3” × 1.1”

Main crystal size: 1.2 × 0.8 cm = 0.5” × 0.3”

TF86AH5: Acanthite crystals with the dominant forms of the cube some of whose faces have very deep hollowed growths. One of the more dominant and very aerial crystals is extraordinarily elongated. They are on matrix with Quartz and small and very bright Pyrite crystals.
The sample, a great classic, is from the David and Emily Stoudt collection of Houston, Texas, and previously in the Kenneth C. Raba and Arson collections in New York. We’ll send the three labels to the buyer.
Rayas Mine, Guanajuato, Municipio Guanajuato  Mexico

Specimen size: 6.5 × 3.2 × 3.5 cm = 2.6” × 1.3” × 1.4”

Main crystal size: 2.2 × 0.9 cm = 0.9” × 0.4”

TK74AE8: Aggregate of very bright Chalcopyrite crystals, pseudomorphous after Polybasite with a hexagonal contour and partially coated by small cubic Acanthite crystals.
The sample has a great quality and it has been noted and photographed in the monograph “Mexico Special Issue VII” of the Mineralogical Record magazine (September-October 2016, pg. 545)
Guanajuato, Municipio Guanajuato  Mexico

Specimen size: 4.5 × 3.8 × 3.5 cm = 1.8” × 1.5” × 1.4”

EP49AC6: Floater aggregate of transparent and very bright Quartz (variety amethyst) crystals, with phantom growths and with a very vivid and intense color. On the back, the aggregate is completely coated by Calcite and there is a very sharp, white, Calcite scalenohedron.
An excellent sample of the F. y C. Gilbert collection whose label we’ll send to the buyer.
This specimen's photo has been reviewed and published in the magazine ‘Mineralogical Record’ on page 556 in the volume 47, number 5 (September-October 2016)
Guanajuato, Municipio Guanajuato  Mexico (±1960)

Specimen size: 7.4 × 5.5 × 2.6 cm = 2.9” × 2.2” × 1.0”

TB16G9: We specially love the vivid green color of his fine and esthetic botryoidal growth, really formed of crystals with completely rounded faces and edges.
Mina Santa Anita, Choix, Sinaloa  Mexico (2005)

Specimen size: 5.5 × 5 × 2.5 cm = 2.2” × 2.0” × 1.0”

EY7V0: Aggregate of tabular crystals (poker chip habit) with hexagonal shape and triangular growth forms on the pinacoid. They have a very well defined color zoning, white on the terminations and creamy in the center.
Mina San Bartolo, Charcas, San Luis Potosí  Mexico (1970-1980)

Specimen size: 12.6 × 7.8 × 4.6 cm = 5.0” × 3.1” × 1.8”

Main crystal size: 3.6 × 2.6 cm = 1.4” × 1.0”

MC26V1: Doubly terminated crystal on matrix. It has very well defined faces and edges and is transparent, with a very deep color. It also has a small aggregate of Opal (variety hyalite) near its upper termination.
Tepetate, Villa de Arriaga, San Luis Potosí  Mexico

Specimen size: 3.4 × 3.1 × 2.1 cm = 1.3” × 1.2” × 0.8”

Main crystal size: 2.2 × 0.6 cm = 0.9” × 0.2”

EM49F4: Two pseudomorphic crystals of Stibiconite after Stibnite, very large, prismatic, and perfect. As is normal in the examples from Mexico, Stibiconite has completely replaced the Stibnite, not just coated it.
Real de Catorce, San Luis Potosí  Mexico (±1970)

Specimen size: 19 × 5 × 6 cm = 7.5” × 2.0” × 2.4”

EG46Y8: Doubly terminated crystals of Fluor-Buergerite on matrix. They show a combination of a dominant ditrigonal prism and rhombohedral terminations. The crystals are very bright, have dark a brown, almost black, color with translucent reflections. The sample, from the type locality for the species, is with a label from John. S. White that indicates it previously was in the Luther Thomas collection. We’ll send both labels to the buyer.
Mexquitic, San Luis Potosí  Mexico

Specimen size: 6.6 × 5.4 × 3 cm = 2.6” × 2.1” × 1.2”

Main crystal size: 0.8 × 0.5 cm = 0.3” × 0.2”

EH66Y4: Radial aggregates of salmon pink acicular crystals. They are on a Quartz matrix, with small dodecahedral Grossular crystals. The color of this Clinozoisite is very unusual and very typical of this Mexican locality.
Álamos, Municipio de Álamos, Sonora  Mexico

Specimen size: 5 × 3.9 × 2.1 cm = 2.0” × 1.5” × 0.8”

TA88F3: The branch is formed of a tight group of small crystals, but some of them have perfectly defined faces. Gold from this locality is also not at all common, which makes this one even more interesting.
Álamos, Sonora  Mexico

Specimen size: 2.5 × 1.8 × 0.6 cm = 1.0” × 0.7” × 0.2”

EA68Y4: Laminar, skeletal and spongy Gold growths. The color and luster, both are very intense, contrast with the Quartz matrix that in some areas is well crystallized and shows a good development of pyramidal faces. The locality is very unusual.
Municipio Nacozari de García, Sonora  Mexico

Specimen size: 4.3 × 3.9 × 2.7 cm = 1.7” × 1.5” × 1.1”

TG97N0: A curious pseudomorph in which Turquoise completely replaces Apatite but clearly preserving the shape and the forms of the prism and the pyramid of the pre-existing Apatite crystal.
Mina la Caridad, La Caridad, Nacozari Garcia, Sonora  Mexico

Specimen size: 6.7 × 4.7 × 4.3 cm = 2.6” × 1.9” × 1.7”

TT6Y4: Group of sharp doubly terminated crystals, one of them clearly dominant. They have the extraordinary deep blue color (“electric blue”) typical of the best samples from Milpillas and are slightly coated by Malachite. Nice miniature.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2011-2012)

Specimen size: 2 × 1.5 × 0.7 cm = 0.8” × 0.6” × 0.3”

Main crystal size: 2 × 1.2 cm = 0.8” × 0.5”

TJ51AD0: Single Azurite crystal on matrix. It is doubly terminated, very rich in faces, very bright, and with the extraordinary deep blue color (electric blue) that has made the Azurites from this locality famous.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2016, page 80
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 3.2 × 2.7 × 1.5 cm = 1.3” × 1.1” × 0.6”

Main crystal size: 2.8 × 1.3 cm = 1.1” × 0.5”

EB63Q8: A novelty at Ste. Marie 2010. Two individualized sharp doubly terminated crystals on matrix of very well defined faces and edges and having the very intense luster from Milpillas. Their incredible blue color (“electric blue”) is typical of the samples of this very special find.
This specimen was photographed and published as a novelty at the 2010 Ste. Marie Show in the magazine ‘Le Règne Minéral’ number 94, page 57, for the magazine ‘Mineralien Welt’ page 11 of number 5/2010 and for the magazine ‘‘Mineral Up’’ on page 29 in number 2010/2 as well as in the special "Milpillas" of the "Lapis" magazine number 07-08/2017, page 4
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (05/2010)

Specimen size: 3.8 × 3.4 × 2.4 cm = 1.5” × 1.3” × 0.9”

Main crystal size: 3 × 1.3 cm = 1.2” × 0.5”

TZ64Z3: Very aerial aggregate of complex crystals with slightly curved faces, very bright, translucent and with a vivid, deep and uniform blue color. The sample is especially esthetic because it is crowning a matrix very rich in small acicular Malachite crystals.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 23
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (11-12/2013)

Specimen size: 5.8 × 4.4 × 2.4 cm = 2.3” × 1.7” × 0.9”

Main crystal size: 1.2 × 1 cm = 0.5” × 0.4”

EH66Q8: A novelty at Ste. Marie 2010. Very aerial and esthetic group of very well defined faces and edges and having the very intense luster from Milpillas. Their incredible blue color (“electric blue”) is typical of the samples of this very special find. With Malachite growths and on matrix.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (05/2010)

Specimen size: 6 × 4.2 × 3.3 cm = 2.4” × 1.7” × 1.3”

Main crystal size: 3.4 × 2.4 cm = 1.3” × 0.9”

TX66S0: Individual crystals of simple and very well defined forms. Two of the crystals are clearly dominant, bright and deep blue colored, with transparent edges. A very beautiful sample, with an uncommon presentation for the locality, where crystals usually are grouped.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2010)

Specimen size: 6.3 × 6 × 3.2 cm = 2.5” × 2.4” × 1.3”

Main crystal size: 2.2 × 1.4 cm = 0.9” × 0.6”

TB14Z2: Very aerial group of Azurite crystals on matrix, with aggregates of acicular Malachite crystals. The crystals, one of them clearly dominant, are translucent and have the vivid and deep blue color (“electric blue”) typical of the best samples from Milpillas.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (11-12/2013)

Specimen size: 6.7 × 4.9 × 1.7 cm = 2.6” × 1.9” × 0.7”

Main crystal size: 2 × 1.6 cm = 0.8” × 0.6”

TE0W4: Thick tabular crystals of azurite on matrix. They are much more isolated than usual, are very bright and have the vivid blue color (electric blue) that has made the Azurites from this locality famous.
Milpillas Mine, 1100 level, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (10/2011)

Specimen size: 7.4 × 5 × 3.4 cm = 2.9” × 2.0” × 1.3”

Main crystal size: 1.4 × 1.4 cm = 0.6” × 0.6”

TQ46AB3: A novelty at Tucson 2015. Aggregate of very sharp Azurite crystals with a thick tabular shape called “chewing gum” due their particular profile. The crystals are transparent, very bright and have the extraordinary deep blue color (“electric blue”) typical of the best samples from Milpillas. Azurite is implanted on white Dickite coating a rocky matrix.
This specimen has been photographed and published as a novelty at the 2015 Tucson Show in the magazine "Lapis" number 03/2015, page 28
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)

Specimen size: 7 × 4.5 × 1.4 cm = 2.8” × 1.8” × 0.6”

Main crystal size: 1.2 × 0.4 cm = 0.5” × 0.2”

TN78AB3: Aggregate of thick Malachite crystals pseudomorphous after Azurite whose faces have a fibrous aspect and silky luster. They are very well defined and sharp, especially considering they are pseudomorphs.
Milpillas Mine, 1140 level, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2012)

Specimen size: 8.6 × 5.4 × 3.7 cm = 3.4” × 2.1” × 1.5”

Main crystal size: 2.8 × 2 cm = 1.1” × 0.8”

TC56X1: Aerial sample of Malachite pseudomorphous after Azurite. They have a very deep color, an excellent luster for the species and the biggest crystal of the former Azurite is doubly terminated.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2009)

Specimen size: 3.4 × 3.3 × 1.9 cm = 1.3” × 1.3” × 0.7”

Main crystal size: 2.3 × 2.2 cm = 0.9” × 0.9”

TR62AB3: A novelty at Tucson 2015. Aggregate, on a rocky matrix, of thick Malachite crystals pseudomorphous after Azurite. They have faces with a fibrous aspect and silky luster and are partially coated by laminar, colorless, clear and very bright Baryte crystals.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (09-10/2014)

Specimen size: 10 × 7.4 × 2.2 cm = 3.9” × 2.9” × 0.9”

Main crystal size: 3.3 × 1.6 cm = 1.3” × 0.6”

TV48N0: A novelty for Tucson 2009. The Malachite has replaced very well defined crystals of Azurite, some of them doubly terminated. The matrix is a thin layer of very bright crystals of Chrysocolla. This association is very rare at Milpillas and only a very few specimens arrived to the market.
The specimen has been published in the magazine ‘extraLAPIS’ on page 83, number 45, "Kupfer Mineralien"
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2008)

Specimen size: 5.5 × 3.4 × 1.8 cm = 2.2” × 1.3” × 0.7”

Main crystal size: 1.2 × 0.5 cm = 0.5” × 0.2”

TE88N0: A novelty for Tucson 2009. The Malachite has replaced very well defined crystals of Azurite, some of them doubly terminated. On the piece the dark green color of the Malachite contrasts with the botryoidal concretions of Plancheite. This association is very rare at Milpillas and only a few specimens arrived to the market.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2008)

Specimen size: 3.4 × 2.3 × 2.2 cm = 1.3” × 0.9” × 0.9”

Main crystal size: 1.8 × 0.7 cm = 0.7” × 0.3”

TZ98N0: A novelty for Tucson 2009. The Malachite has replaced very well defined crystals of Azurite, some of them doubly terminated. On the piece the dark green color of the Malachite contrasts with the botryoidal concretions of Plancheite. This association is very rare at Milpillas and only a few specimens arrived to the market.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2008)

Specimen size: 5.2 × 3.1 × 2.4 cm = 2.0” × 1.2” × 0.9”

Main crystal size: 1.9 × 0.7 cm = 0.7” × 0.3”

TF74AB3: Aggregate of thick Malachite crystals pseudomorphous after Azurite, better defined than usual, whose faces have a fibrous aspect and silky luster and small blue Planchéite aggregates.
Milpillas Mine, 1140 level, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2012)

Specimen size: 8 × 7.2 × 3.2 cm = 3.1” × 2.8” × 1.3”

Main crystal size: 5.4 × 2 cm = 2.1” × 0.8”

TW89AB2: A novelty at Tucson 2015. Fibrous Brochantite is very well known at the Milpillas mine but this sample has aggregates of elongated idiomorphic crystals with very well defined faces and edges and chisel like well-terminations. In our opinion, the world's best for the species for their definition, crystal size, as well as their color and luster and, in general, very high quality.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (07-08/2014)

Specimen size: 4.5 × 3.1 × 1.7 cm = 1.8” × 1.2” × 0.7”

Main crystal size: 1.6 × 0.3 cm = 0.6” × 0.1”

TD73AB1: A novelty at Tucson 2014. Although the Brochantites from the Milpillas Mine are well-known, this time they appear in solid, chisel like well-terminated crystals, which makes them, in our opinion, the world's best for the species for their luster, sharpness and, in general, very high quality.
The specimen has been photographed and published in the magazine ‘‘Mineral Up’’ number 01/2015, page 43
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (07-08/2014)

Specimen size: 4.9 × 4.8 × 0.7 cm = 1.9” × 1.9” × 0.3”

Main crystal size: 1.4 × 0.5 cm = 0.6” × 0.2”

TC40AC9: Aggregates of very elongated idiomorphic crystals with very well defined faces and edges coated by a later generation with a satin luster and lighter green fibrous Brochantite growths. The main crystal has a perfect termination, as shown in the close-up photo. In our opinion, the world's best for the species for their definition, crystal size, as well as their color and luster and, in general, very high quality.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (07-08/2014)

Specimen size: 6.7 × 4.1 × 1.4 cm = 2.6” × 1.6” × 0.6”

Main crystal size: 6.6 × 0.4 cm = 2.6” × 0.2”

TA26AB1: A novelty at Tucson 2014. Although the Brochantites from the Milpillas Mine are well-known, this time they appear in solid, chisel like well-terminated crystals, which makes them, in our opinion, the world's best for the species for their luster, sharpness and, in general, very high quality.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (07-08/2014)

Specimen size: 11 × 7 × 3.4 cm = 4.3” × 2.8” × 1.3”

Main crystal size: 1.5 × 0.3 cm = 0.6” × 0.1”

TA97AD3: Aggregate, on matrix, of elongated crystals, some of them doubly terminated, with very well defined faces and edges and sharp chisel-like terminations. The crystals are very bright and have a very deep color. Due these characteristics, in our opinion, they can be considered as the best for the species.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (07-08/2014)

Specimen size: 13.2 × 12.2 × 7 cm = 5.2” × 4.8” × 2.8”

Main crystal size: 1.3 × 0.4 cm = 0.5” × 0.2”

TK46AD2: A novelty at Tucson 2016. Very isolated Cuprite crystals, one of them clearly dominant and larger than usual on Milpillas samples. The crystals, translucent and with an intense red color, are formed by the dominant octahedron with cube and dodecahedron faces and they are on a rocky matrix with massive Cuprite.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (06/2015)

Specimen size: 8.6 × 7 × 4.7 cm = 3.4” × 2.8” × 1.9”

Main crystal size: 1.2 × 1 cm = 0.5” × 0.4”

TH56AD2: A novelty at Tucson 2016. Polycrystalline aggregate that forms a “paved” like surface of Cuprite crystals formed by the dominant octahedron with small cube faces. They have very well defined faces and edges. The crystals, on a rocky matrix with massive Cuprite, are translucent, and have a very deep red color that is partially masked by their extraordinary luster.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (08-09/2015)

Specimen size: 9.6 × 5.4 × 4.7 cm = 3.8” × 2.1” × 1.9”

Main crystal size: 0.7 × 0.7 cm = 0.3” × 0.3”

TX46AB3: Olive-green Tangeite microcrystals on an aggregate of Malachite crystals pseudomorphous after Azurite. The sample, representing the best known for this rare copper and calcium vanadate, has been analyzed, the result that Tangeite is a new species for Milpillas.
We will send a copy of the analysis to the buyer.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 36
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2010)

Specimen size: 19.3 × 13.5 × 5.2 cm = 7.6” × 5.3” × 2.0”

ET7AC1: Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.

Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 1  × 0.7 × 1.1 cm = 0.4” × 0.3” × 0.4”

Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1”

EY37AC1: Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.
This specimen was published on the Mineralogical Record´s web page, in the ‘What’s New in the Mineral World?’ section, report #41, August 22, 2015 edition, page 8
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 1.5 × 1.1 × 0.6 cm = 0.6” × 0.4” × 0.2”

Main crystal size: 0.4 × 0.2 cm = 0.2” × 0.1”

EC67AC1: Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 37
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 3.2 × 2.9 × 1.9 cm = 1.3” × 1.1” × 0.7”

Main crystal size: 1.1 × 0.5 cm = 0.4” × 0.2”

EA27AC1: Volborthite was the new sensation in the Tucson Show 2015 as well as in Ste. Marie, but the number of them seems to be somewhat limited.
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones, so all together these are a new standard for this species. We are proud to offer this one which has a very reasonable balance quality / price.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 4.3 × 2.7 × 2.4 cm = 1.7” × 1.1” × 0.9”

Main crystal size: 0.4 × 0.2 cm = 0.2” × 0.1”

TC67AB3: A novelty at Tucson 2015. Big and thick Volborthite crystal with deep olive-green color with yellowish shades, partially coated by aggregates of small acicular crystal of the same Volborthite. It is on Malachite, and on matrix. Due to the size and the definition of the crystal this sample has an extraordinary quality for the species, a rare copper vanadate. In fact, we are not aware of better Volborthite than those found at the Milpillas mine.
The sample has been analyzed and we will send a copy of the analysis to the buyer.
The specimen has been photographed and published in the magazine ‘‘Mineral Up’’ number 01/2015, page 43
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)

Specimen size: 2.3 × 1.5 × 1.6 cm = 0.9” × 0.6” × 0.6”

Main crystal size: 1.4 × 1 cm = 0.6” × 0.4”

EF67AE4: Flattened rosette-like aggregates of very large (for the species) Volborthite crystals. They have a uniform deep green color and are with translucent and bright Azurite crystals and small spherical Malachite aggregates. A miniature of special quality.
Milpillas Mine, 1280 level, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)

Specimen size: 3.4 × 3 × 2.7 cm = 1.3” × 1.2” × 1.1”

Main crystal size: 3 × 1.7 cm = 1.2” × 0.7”

TB56AD0: A novelty at Tucson 2016. Aggregate of crystals whose shape is between tapered and fibrous, very well defined for this very uncommon vanadate, with a yellowish-green color and on matrix, with Malachite. A new rarity from Milpillas. The sample has been analyzed and we’ll send a copy of this analysis to the buyer.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 38
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 1.8 × 1.1 × 0.4 cm = 0.7” × 0.4” × 0.2”

TD16AD0: A novelty at Tucson 2016 (but found in 2013). Complex Pyrite crystal, very rich in faces that are black colored due to a uniform Chalcocite coating, very bright and on matrix, with small (not coated) Pyrite crystals.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2013)

Specimen size: 5.7 × 5.7 × 3.7 cm = 2.2” × 2.2” × 1.5”

Main crystal size: 1.9 × 1.8 cm = 0.7” × 0.7”

TB46AD0: A novelty at Tucson 2016 (but found in 2013). Complex Pyrite crystal, very rich in faces that are black colored due to a uniform Chalcocite coating, very bright and on matrix, with small (not coated) Pyrite crystals.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 26
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2013)

Specimen size: 8.4 × 5.7 × 4.8 cm = 3.3” × 2.2” × 1.9”

Main crystal size: 2.1 × 1.6 cm = 0.8” × 0.6”

MY26X2: Botryoidal growths of micro-crystals of Duftite, some of them very well defined under a binocular microscope. They are clear green to slightly darker green and their luster varies from bright to dull, with transparent and colorless crystals of Calcite, and they coat a limonite matrix. Due to the absence of previous data about notable samples of Duftite at the Ojuela mine, we consider this find as an interesting "novelty" for this mine. The samples have been analyzed, and we'll send a copy of the analysis to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2012)

Specimen size: 6.4 × 4.4 × 2.7 cm = 2.5” × 1.7” × 1.1”

MB56X2: Botryoidal growths of micro-crystals of Duftite, some of them very well defined under a binocular microscope. They are clear green to slightly darker green and their luster varies from bright to dull, with transparent and colorless crystals of Calcite, and they coat a limonite matrix. Due to the absence of previous data about notable samples of Duftite at the Ojuela mine, we consider this find as an interesting "novelty" for this mine. The samples have been analyzed, and we'll send a copy of the analysis to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2012)

Specimen size: 9.5 × 7.8 × 3.9 cm = 3.7” × 3.1” × 1.5”

MD76X2: Botryoidal growths of micro-crystals of Duftite, some of them very well defined under a binocular microscope. They are clear green to slightly darker green and their luster varies from bright to dull, with transparent and colorless crystals of Calcite, and they coat a limonite matrix. Due to the absence of previous data about notable samples of Duftite at the Ojuela mine, we consider this find as an interesting "novelty" for this mine. The samples have been analyzed, and we'll send a copy of the analysis to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2012)

Specimen size: 10.8 × 10.7 × 4.3 cm = 4.3” × 4.2” × 1.7”

TF6V2: A novelty at Tucson 2012. These Mottramites are totally new for Ojuela Mine where they never were seen before. Also the quality is quite competitive due to its richness and the botryoidal forms, so they are not only a "locality sample" but also a good representation of the species.
We will provide a copy of the analysis to the buyer of the specimen.
Ojuela Mine, level 35, Mapimí, Municipio Mapimí, Durango  Mexico (11/2011)

Specimen size: 5.3 × 3.7 × 4 cm = 2.1” × 1.5” × 1.6”

TD17V1: A novelty at Tucson 2012. These Mottramites are totally new for Ojuela Mine where they never were seen before. Also the quality is quite competitive due to its richness and the botryoidal forms, so they are not only a "locality sample" but also a good representation of the species.
We will provide a copy of the analysis to the buyer of the specimen.
Ojuela Mine, level 35, Mapimí, Municipio Mapimí, Durango  Mexico (11/2011)

Specimen size: 7.4 × 7.2 × 4.4 cm = 2.9” × 2.8” × 1.7”

TX28V7: A novelty at Tucson 2012. These Mottramites are totally new for the Ojuela Mine where they never were seen before. Also the quality is quite competitive due to its richness and the botryoidal forms, so they are not only a "locality sample" but also a good representation of the species.
We will provide a copy of the analysis to the buyer of the specimen.
Ojuela Mine, level 35, Mapimí, Municipio Mapimí, Durango  Mexico (11/2011)

Specimen size: 9.8 × 7.3 × 5.7 cm = 3.9” × 2.9” × 2.2”

TP66V7: A novelty at Tucson 2012. These Mottramites are totally new for the Ojuela Mine where they never were seen before. Also the quality is quite competitive due to its richness and the botryoidal forms, so they are not only a "locality sample" but also a good representation of the species.
We will provide a copy of the analysis to the buyer of the specimen.
Ojuela Mine, level 35, Mapimí, Municipio Mapimí, Durango  Mexico (11/2011)

Specimen size: 10 × 7.8 × 4.2 cm = 3.9” × 3.1” × 1.7”

TQ96X4: A novelty at Tucson 2013. Wulfenite crystals formed by the prism and the terminal pinacoid, some of them doubly terminated, implanted on a botryoidal matrix of Mottramite.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (10/2012)

Specimen size: 4.3 × 3.7 × 2.4 cm = 1.7” × 1.5” × 0.9”

Main crystal size: 0.8 × 0.4 cm = 0.3” × 0.2”

TR46X4: A novelty at Tucson 2013. Small crystals of Wulfenite formed by the prism and terminal pinacoid, some of them doubly terminated, implanted on a columnar growth of Mottramite.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (10/2012)

Specimen size: 6.7 × 2.5 × 1.3 cm = 2.6” × 1.0” × 0.5”

Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1”

TF66X6: A novelty at Tucson 2013. Dark olive-green botryoidal growths of Mottramite with yellow Wulfenite crystals consisting of a prism and the terminal pinacoid. We will provide a copy of the analysis of the Mottramite to the buyer of the specimen.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (10/2012)

Specimen size: 7.3 × 3.9 × 2.7 cm = 2.9” × 1.5” × 1.1”

Main crystal size: 1.2 × 0.9 cm = 0.5” × 0.4”

TZ27N0: Crystals of Wulfenite of short prismatic habit. They have excellent luster and color, very intense. On a Limonite matrix and with coatings of green botryoidal Mimetite.
Ojuela Mine, level 6, San Juan Poniente, Mapimí, Municipio Mapimí, Durango  Mexico (2008)

Specimen size: 2.9 × 2.7 × 2.3 cm = 1.1” × 1.1” × 0.9”

Main crystal size: 0.9 × 0.4 cm = 0.4” × 0.2”

TL6L1: Novelty from Tucson 2008. Unusual morphology. Wulfenite crystals formed by elongated and curved prism faces. Color is yellow, slightly orange. With small Calcite crystals on a Limonite matrix.
This specimen was photographed for the ‘Börsen-News / Tucson '08’ section of the magazine ‘Mineralien Welt’ and appears on page 16 of number 3/2008.
Ojuela Mine, level 6, San Juan Poniente, Mapimí, Municipio Mapimí, Durango  Mexico (2007)

Specimen size: 3.7 × 2.7 × 2.6 cm = 1.5” × 1.1” × 1.0”

Main crystal size: 1.4 × 0.3 cm = 0.6” × 0.1”

TZ96N9: Very aerial doubly terminated prismatic crystal of Wulfenite of excellent color and good luster on a matrix of Limonite partially coated by growths of green botryoidal Mimetite.
Ojuela Mine, level 6, San Juan Poniente, Mapimí, Municipio Mapimí, Durango  Mexico (2008)

Specimen size: 4 × 3.8 × 1.9 cm = 1.6” × 1.5” × 0.7”

Main crystal size: 2 × 0.4 cm = 0.8” × 0.2”

TY47N0: Crystals of Wulfenite of very elongated prismatic habit. The crystals, very well defined, have excellent luster and color, very intense. On a Limonite matrix and with coatings of green botryoidal Mimetite.
This specimen was photographed for the ‘what’s new at Tucson 2009’ section of the magazine ‘Mineralien Welt’ and appears on page 4 of number 3/2009.
Ojuela Mine, level 6, San Juan Poniente, Mapimí, Municipio Mapimí, Durango  Mexico (2008)

Specimen size: 4.8 × 4.1 × 3.2 cm = 1.9” × 1.6” × 1.3”

Main crystal size: 1.4 × 0.3 cm = 0.6” × 0.1”

TC27N4: A very esthetic sample, very rich with unusually elongated Wulfenitecrystals, most of them doubly terminated. The crystals consist of a steepdipyramid of slightly curved edges and terminated by the pinacoid. They are on Limonite matrix.
Ojuela Mine, level 6, San Juan Poniente, Mapimí, Municipio Mapimí, Durango  Mexico (2008)

Specimen size: 8.7 × 7.2 × 5 cm = 3.4” × 2.8” × 2.0”

Main crystal size: 1.2 × 0.4 cm = 0.5” × 0.2”

TQ70N0: Crystals of Wulfenite of very acute dipyramidal habit. Color and luster are excellent and they are on a Limonite matrix partially coated by botryoidal green Mimetite.
This specimen was photographed for the ‘what’s new at Tucson 2009’ section of the magazine ‘Mineralien Welt’ and appears on page 7 of number 3/2009.
Ojuela Mine, level 6, San Juan Poniente, Mapimí, Municipio Mapimí, Durango  Mexico (2008)

Specimen size: 9.5 × 7 × 3.8 cm = 3.7” × 2.8” × 1.5”

Main crystal size: 0.9 × 0.4 cm = 0.4” × 0.2”

EQ87AA3: Botryoidal Mimetite aggregates, on matrix, with an intense and deep yellow color and with implanted laminar Wulfenite crystals that are very bright with a pale yellow color. A sample of very good quality for the Ojuela mine.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5.4 × 4.9 × 2.6 cm = 2.1” × 1.9” × 1.0”

TW99AA2: Botryoidal growths and isolated Mimetite crystals, on matrix, with an intense yellow color. Contrary to our usual policy, we offer this sample despite some small broken crystals, because the main group is above normal in size and quality, and it is in perfect condition. Also for the special quality and esthetics of the piece in comparison with the best-known samples from this mine.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (09/2013)

Specimen size: 7.6 × 4.5 × 3.7 cm = 3.0” × 1.8” × 1.5”

Main crystal size: 1.8 × 1.2 cm = 0.7” × 0.5”

TG96S0: Botryoidal aggregate of Rosasite with color banding at the top and concentric growths, on limonite matrix.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2010)

Specimen size: 5 × 4 × 2.4 cm = 2.0” × 1.6” × 0.9”

TV86V5: Complete botryoidal nodule, with intense and uniform bluish green color.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2010)

Specimen size: 6.2 × 3.5 × 2.4 cm = 2.4” × 1.4” × 0.9”

TH76S1: Columnar-botryoidal growth of Rosasite of rich greenish blue color, very uniform, with small white rhombohedral crystals of Calcite on limonitic matrix. The "Mouse"!
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2010)

Specimen size: 6.4 × 2.6 × 2.8 cm = 2.5” × 1.0” × 1.1”

Main crystal size: 2.4 × 1 cm = 0.9” × 0.4”

TX64S2: Botryoidal aggregate of Rosasite of intense greenish-blue on Limonite matrix. A recent discovery at the classic Ojuela mine.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2010)

Specimen size: 6.9 × 5.2 × 3.1 cm = 2.7” × 2.0” × 1.2”

TD26S2: Botryoidal aggregate of Rosasite of intense greenish-blue on Limonite matrix. A recent discovery at the classic Ojuela mine.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2010)

Specimen size: 8.6 × 4.5 × 4.3 cm = 3.4” × 1.8” × 1.7”

TP86S1: Botryoidal growths of Rosasite of rich greenish blue color, very uniform, on which are columnar growths of green Conichalcite with white rhombohedral crystals of Calcite, on a limonitic matrix.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2010)

Specimen size: 5.3 × 3.5 × 3.4 cm = 2.1” × 1.4” × 1.3”

MX26W5: Fan-like aggregates, on limonite matrix, of transparent crystals of Hemimorphite. They are sharp, bright, have excellent terminations and are with small rhombohedral crystals of calcite with reddish inclusions of Hematite.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (2011)

Specimen size: 10.4 × 8.5 × 4 cm = 4.1” × 3.3” × 1.6”

Main crystal size: 1.2 × 0.3 cm = 0.5” × 0.1”

MC13Y7: Aggregates of short prismatic crystals, thicker than usual on samples from the Ojuela mine. They are on a limonite matrix and some of them have red inclusions. The sample, apart from its mineralogical and historical interest, is really esthetic.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (1970-1980)

Specimen size: 13 × 9 × 8.5 cm = 5.1” × 3.5” × 3.3”

Main crystal size: 1 × 0.6 cm = 0.4” × 0.2”

MF66AB4: Fan-like aggregates and radial groups of flattened Hemimorphite crystals with excellent terminations. They are very well defined, separate, transparent, and bright and are on a limonite matrix, with small and intense yellow bow-tie Mimetite groups.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (1970-1980)

Specimen size: 8.2 × 4.7 × 6 cm = 3.2” × 1.9” × 2.4”

Main crystal size: 1.2 × 0.5 cm = 0.5” × 0.2”

TM76L3: Fan-shaped groups of transparent Hemimorphite crystals, with a very good brilliance and excellent terminations. Accompanied by very small aggregates of yellow greenish Mimetite crystals. On a Limonite matrix.
We will send the handwritten label of the sample, from T. L. Potucek, to the buyer of this esthetic specimen.
Ojuela Mine, level 7, Mapimí, Municipio Mapimí, Durango  Mexico (12/2004)

Specimen size: 8.3 × 6 × 4.3 cm = 3.3” × 2.4” × 1.7”

Main crystal size: 1.3 × 0.4 cm = 0.5” × 0.2”

E11DG4: This Aurichalcite has good color quality, but draws specially our attention the paragenesis with Gypsum crystals on the central part of the specimen. It comes from an old collection and we add the two labels.
Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.7 × 3.7 × 2.2 cm = 1.9” × 1.5” × 0.9”

EM96V1: Radial aggregates of acicular crystals of Aurichalcite on limonite matrix. They are very bright and have a very vivid greenish blue color.
Mapimí, Municipio Mapimí, Durango  Mexico (±1980)

Specimen size: 6.8 × 5.7 × 4 cm = 2.7” × 2.2” × 1.6”

Main crystal size: 0.7 × 0.1 cm = 0.3” × 0.0”

EC46V0: Radial growths of acicular crystals of Aurichalcite with a deeper color in the center and clearer on the crystal terminations. They are on a limonite matrix, with fanlike aggregates of colorless and transparent crystals of Hemimorfite.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (±1970)

Specimen size: 10 × 5.4 × 3.4 cm = 3.9” × 2.1” × 1.3”

Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1”

EV67V1: Spheroidal aggregates of Conichalcite with very intense green color, on a limonite matrix with scalenohedral crystals of Calcite. Of better quality than usual for this locality.
Mapimí, Municipio Mapimí, Durango  Mexico (1970-1980)

Specimen size: 10.5 × 5.3 × 4.8 cm = 4.1” × 2.1” × 1.9”

TB14R9: An especially aerial and esthetic sample, with sharp rhombohedral crystals of Calcite on Limonite matrix. The crystals have very well marked color zoning enhanced by reddish inclusions of Hematite.
Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5.7 × 4.8 × 2.4 cm = 2.2” × 1.9” × 0.9”

Main crystal size: 1 × 1 cm = 0.4” × 0.4”

TP27Z5: Rhombohedral Calcite crystals on a limonite matrix with very well defined faces and edges. They are very rich in blue inclusions of an undetermined secondary copper mineral. The crystals have been analyzed and, although their aspect suggests it could be another species, it is an unusual Calcite with inclusions. We will send a copy of the analysis to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 8.6 × 4.4 × 4 cm = 3.4” × 1.7” × 1.6”

Main crystal size: 0.4 × 0.4 cm = 0.2” × 0.2”

MV10W4: Very well defined rhombohedral crystals of simple forms, bright and with snowy white color. They are implanted on a base of flattened crystals of Hemimorphite, also very well defined, and on a limonite matrix. Such samples were quite common at the Ojuela Mine in the eighties.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (1970-1980)

Specimen size: 8.2 × 6.1 × 4.1 cm = 3.2” × 2.4” × 1.6”

Main crystal size: 2.7 × 2.1 cm = 1.1” × 0.8”

MB57Y3: Botryoidal Mimetite growth, on matrix, with very intense and uniform yellow color and very notable relief. It is on a limonite matrix and is of an excellent quality for Ojuela Mine.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.4 × 3.9 × 2 cm = 1.7” × 1.5” × 0.8”

TV90V4: Spheroidal aggregates of acute dipyramidal crystals with intense yellow color and on matrix.
The sample, of high quality for the locality, is with a label of the Chris Cowan collection that we will send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 7.8 × 6.2 × 3 cm = 3.1” × 2.4” × 1.2”

NR59AB7: Translucent globular Austinite growths with a very intense and uniform green color. They are on a limonite matrix, with small cuprian Adamite crystals that have a clearer green color. Due to its color and shape the sample is very esthetic. Both the Austinite and Adamite have been analyzed and we’ll provide a copy of the analyses to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.1 × 4 × 2.9 cm = 1.6” × 1.6” × 1.1”

NP47AB5: Spheroidal aggregates of translucent crystals with a clear green color and on a limonite matrix, with small Adamite crystals. The Austinite has a level of transparency that is unusual for the samples from the Ojuela mine. The sample has been analyzed and we’ll send a copy of the analysis to the buyer.
Ojuela Mine, level 5, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5.5 × 4.4 × 4 cm = 2.2” × 1.7” × 1.6”

Main crystal size: 1 × 0.9 cm = 0.4” × 0.4”

TT47AB8: Centered aggregate of Köttigite crystals with very well defined terminations and a deep bluish-green color. It is on matrix, with microscopic coatings of yellowish Pharmacosiderite. The Raman analysis indicates values in the Köttigite-Parasymplesite series and concludes it is an iron bearing Köttigite. We’ll send a copy of the analysis to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 3 × 2.6 × 1,7 cm = 1.2” × 1.0” × 0.4”

Main crystal size: 1.5 × 1.4 cm = 0.6” × 0.6”

EH10AA1: Aggregate of very sharp and exceptionally well developed Paradamite crystals, rare and unmistakable with Adamite, with an intense and uniform yellow color and on limonite matrix.
The sample is from the type locality for the species and it is with a label of the very well-known collection of Ronald J. Pellar that we will send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 1.7 × 1.2 × 1.2 cm = 0.7” × 0.5” × 0.5”

Main crystal size: 0.5 × 0.3 cm = 0.2” × 0.1”

TF90Z8: Aggregate of very sharp dipyramidal crystals with the dipyramid truncated by the pinacoid. They are large for the species (and very large for the locality) and are translucent, bright and have a very deep greenish-blue color, but it varies depending of the kind of incident light, more blue in daylight. A thumbnail of high quality.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (08/2013)

Specimen size: 2.7 × 2 × 1,3 cm = 1.1” × 0.8” × 0.4”

Main crystal size: 1.2 × 1 cm = 0.5” × 0.4”

TN36G9: A nice miniature consisting of two radial groups almost perfectly circular, with crystals of lemon yellow color, more intense on terminations. This sample was in the collection of John S. White, and we’ll send his label to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 2.5 × 1.2 × 1.2 cm = 1.0” × 0.5” × 0.5”

TF4B6: Like a seed head, the form of this Adamite makes it different from other ones. The good color and luster make for a final perfect result.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 2.9 × 2.9 cm = 1.1” × 1.1”

EP6Y6: Fan-like aggregates, more isolated than usual, of prismatic crystals with excellent terminations, a very vivid yellow color and an excellent luster that contrasts with the dark limonite matrix.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5.2 × 2.3 × 2.6 cm = 2.0” × 0.9” × 1.0”

Main crystal size: 0.7 × 0.2 cm = 0.3” × 0.1”

TD68Y0: Botryoidal growths with superficial recrystallizations and a very well marked fanlike growth of Adamite itself. The sample has intense luster and a very uniform color, yellow with green shades.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 8.8 × 6.4 × 2 cm = 3.5” × 2.5” × 0.8”

TP27K4: On the sample coexist spherical growths, almost globular, and individual crystals of perfectly defined faces and edges. The Adamite esthetically contrasts with the Limonite matrix.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 9.5 × 6.5 × 3 cm = 3.7” × 2.6” × 1.2”

Main crystal size: 1.7 × 1.6 cm = 0.7” × 0.6”

TF16K0: A complete globular growth, free of damage and on matrix. On this growth a second generation of Adamite crystals has formed. They are thin prismatic, perfectly defined, individuals (some of them are doubly terminated) forming fanlike groups. Very esthetic.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 10.5 × 4.4 × 1.5 cm = 4.1” × 1.7” × 0.6”

Main crystal size: 0.5 × 0.1 cm = 0.2” × 0.0”

EE99F2: The Adamites from Mapimí never seem to run out, but one cannot get bored with them. This one shows why with its sprays, so typical of the locality, which are a perfect color, very brilliant and contrast strongly with the red Limonite matrix.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 11 × 10 × 5.5 cm = 4.3” × 3.9” × 2.2”

TG63V2: Aggregate of dipyramidal crystals of simple morphology, green color, slightly yellowish. They are on limonite matrix.
The sample was in the collection of Chris Cowan, whose label we’ll send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 3.1 × 2.9 × 2.1 cm = 1.2” × 1.1” × 0.8”

Main crystal size: 1.3 × 0.8 cm = 0.5” × 0.3”

TB96F3: The crystals have good size, are very uniform, well defined, and are green-blue. They are aerial, accompanied by colorless Calcite, and have an intense contrast with the dark Limonite matrix. A very esthetic classic.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 3.7 × 4 × 2.6 cm = 1.5” × 1.6” × 1.0”

Main crystal size: 1.2 × 0.8 cm = 0.5” × 0.3”

TA20X4: Curved and interpenetrating aggregates with poorly defined crystals, and with a yellow color with greenish tones due to the presence of copper. Very aerial and on limonite matrix. An excellent Mexican classic.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5.8 × 5.5 × 3.9 cm = 2.3” × 2.2” × 1.5”

EA13M1: This esthetic cuprian Adamite specimen is from an important vug that was mined last March at the venerable Ojuela Mine, in Durango, a mine that is being worked again. The specimen consists of well defined crystals of very brilliant cuprian Adamite, with an interesting green color with bluish tones. Of special appeal is the pseudo-octahedral Adamite crystal shape due to well developed terminal faces to the detriment of the prism. Also, with some olive green Austinite crystals in spherical growths, on a rust-red Limonite matrix.
We will provide a copy of the cuprian Adamite analysis to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (03/2008)

Specimen size: 4.2 × 2.7 × 2.7 cm = 1.7” × 1.1” × 1.1”

Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0”

EG11L9: A novelty from the Sainte-Marie-aux-Mines Mineral Show. Well defined and very brilliant small cuprian Adamite crystals, with an interesting green color with bluish tones, on a matrix of Limonite. We will provide a copy of the analysis to the buyer.
This specimen was photographed for the ‘Ste. Marie-aux-Mines 2008’ section of the magazine ‘Lapis’ and appears on page 45 of number 9/2008.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (03/2008)

Specimen size: 4.2 × 3.5 × 2.6 cm = 1.7” × 1.4” × 1.0”

Main crystal size: 0.2 × 0.2 cm = 0.1” × 0.1”

ED6L9: A novelty from the Sainte-Marie-aux-Mines Mineral Show. Group of very sharp, brilliant and attractive green to yellowish color cuprian Adamite crystals, on a Limonite matrix. We will provide a copy of the analysis to the buyer.
This specimen was photographed for the ‘Ste. Marie-aux-Mines 2008’ section of the magazine ‘Lapis’ and appears on page 45 of number 9/2008, and also in the magazine ‘Rivista Mineralogica Italiana’ on page 188 in number 2008/3.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (03/2008)

Specimen size: 5.7 × 3.9 × 3.6 cm = 2.2” × 1.5” × 1.4”

Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1”

EF56L9: A novelty from the Sainte-Marie-aux-Mines Mineral Show. Globular aggregates of small but very sharp and brilliant cuprian Adamite crystals, with an excellent and uniform green color. On a Limonite matrix. We will provide a copy of the analysis to the buyer.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Rivista Mineralogica Italiana’ on page 188 in number 2008/3.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (03/2008)

Specimen size: 6.7 × 6.4 × 5.6 cm = 2.6” × 2.5” × 2.2”

Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1”

EC46L9: A novelty from the Sainte-Marie-aux-Mines Mineral Show. Globular aggregates of small but very sharp and brilliant cuprian Adamite crystals, with an excellent and uniform green color. On a Limonite matrix. We will provide a copy of the analysis to the buyer.
This specimen was photographed and published as a novelty at the 2008 Ste. Marie Show in the magazine ‘Le Règne Minéral’ number 82, page 27.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (03/2008)

Specimen size: 7.9 × 6.7 × 4.5 cm = 3.1” × 2.6” × 1.8”

Main crystal size: 0.2 × 0.2 cm = 0.1” × 0.1”

TR96Z5: A mushroom-like growth on a botryoidal Goethite matrix of Adamite crystals with very well defined faces and edges, a deep yellow color and violet shades on terminal faces. An excellent “oldie” from Mapimí.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.7 × 4 × 3.4 cm = 1.9” × 1.6” × 1.3”

TD67: Very gemmy and very brilliant, the combination of the colors of the manganoan Adamite and the regular Adamite make an extremely attractive display specimen.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 9.3 × 5.7 × 2.2 cm = 3.7” × 2.2” × 0.9”

ER96I1: The crystals of Danburite are completely clear and form a contact visible both for the form of wedge on the termination and the fine suture all along the prism. The group is densely covered by amethyst crystals of excellent color.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘‘Mineral Up’’ on page 28 in number 2006/2.
Mina San Bartolo, Charcas, San Luis Potosí  Mexico (2005-2006)

Specimen size: 4 × 2.8 × 3 cm = 1.6” × 1.1” × 1.2”

Main crystal size: 1.5 × 0.6 cm = 0.6” × 0.2”

EL30H7: The sample is very esthetic, formed by prismatic crystals of Danburite, one of them clearly dominant, with very sharp faces and edges and clear terminations. On the base of the specimen there are groups of amethyst Quartz of a nice color, contrasting with the white Danburite.
This sample has been reviewed, photographed and published as news from Ste. Marie 2006 by the magazine ‘Le Règne Minéral’ on page 47, number 70.
Mina San Bartolo, Charcas, San Luis Potosí  Mexico (2005-2006)

Specimen size: 7 × 6.5 × 4.5 cm = 2.8” × 2.6” × 1.8”

Main crystal size: 8.3 × 2.2 cm = 3.3” × 0.9”

TD12Z6: Group, on a Chalcopyrite matrix, of complex Tennantite crystals with a tetrahedral shape and very rich with faces, very bright and partially coated by small Quartz crystals. The analysis of the crystals indicates that they are basically silvery Tennantite, but the presence of other silver minerals such as Miargyrite, Pyrargyrite or Freibergite has been detected. The sample is form a Mexican zone that is scarcely known in mineralogical circles, so we indicate the locality as approximate because we don’t know if all the samples are from a single mine, different mines, or from a wider mining area. We will send a copy of the analysis of the Tennantite to the buyer.
San José Mine, San José del Progreso, Municipìo San José del Progreso, Ocotlán District, Valles Centrales Region, Oaxaca  Mexico (2013)

Specimen size: 2.4 × 2.2 × 0.8 cm = 0.9” × 0.9” × 0.3”

Main crystal size: 0.4 × 0.4 cm = 0.2” × 0.2”

TB6Z6: Group, on a Chalcopyrite matrix, of complex Tennantite crystals with a tetrahedral shape and very rich with faces, very bright and partially coated by small Quartz crystals. The analysis of the crystals indicates that they are basically silvery Tennantite, but the presence of other silver minerals such as Miargyrite, Pyrargyrite or Freibergite has been detected. The sample is form a Mexican zone that is scarcely known in mineralogical circles, so we indicate the locality as approximate because we don’t know if all the samples are from a single mine, different mines, or from a wider mining area. We will send a copy of the analysis of the Tennantite to the buyer.
San José Mine, San José del Progreso, Municipìo San José del Progreso, Ocotlán District, Valles Centrales Region, Oaxaca  Mexico (2013)

Specimen size: 4.6 × 3.2 × 1.7 cm = 1.8” × 1.3” × 0.7”

Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2”

TP27Z1: A novelty at Tucson 2014. These Opals (variety hyalite) appeared for first time during the Tucson Show and in addition to the fact that they are gemmy and quite aesthetic, standing up on their matrix, their main feature is that they fluoresce even in daylight! In fact, they fluoresce in almost all kinds of light, neon light, LED light, daylight and, of course,UV light. The only light with which they don't react is incandescent. As they are so new the locality is still very vague, sorry for that, but we are sure that time will clarify the locality as well as the reason why they fluoresce so strongly.
This specimen was photographed and published as a novelty at the 2014 Tucson Show in the magazine "Lapis" number 03/2014, page 32, and in the Russian magazine ‘Mineral Observer’ on page 62 in the volume 19, number 3
Zacatecas  Mexico (2013-2014)

Specimen size: 1.8 × 1.8 × 1.3 cm = 0.7” × 0.7” × 0.5”

TL63Z2: A novelty at Tucson 2014. These Opals (variety hyalite) appeared for first time during the Tucson Show and in addition to the fact that they are gemmy and quite aesthetic, standing up on their matrix, their main feature is that they fluoresce even in daylight! In fact, they fluoresce in almost all kinds of light, neon light, LED light, daylight and, of course,UV light. The only light with which they don't react is incandescent. As they are so new the locality is still very vague, sorry for that, but we are sure that time will clarify the locality as well as the reason why they fluoresce so strongly.
This specimen was published on the Mineralogical Record´s web page, in the ‘What’s New in the Mineral World?’ section, report #37, April 14, 2014 edition.

Zacatecas  Mexico (2013-2014)

Specimen size: 2.2 × 1.6 × 1.1 cm = 0.9” × 0.6” × 0.4”

TM14Z6: A novelty at Tucson 2014. Transparent botryoidal growth on matrix. This kind of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic, standing up on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light, neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As they are so new the locality is still very vague, sorry for that, but we are sure that time will clarify the locality as well as the reason why they fluoresce so strongly.
Zacatecas  Mexico (2013-2014)

Specimen size: 2.2 × 1.5 × 1 cm = 0.9” × 0.6” × 0.4”

TX26Z6: A novelty at Tucson 2014. Transparent botryoidal growth on matrix. This kind of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic, standing up on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light, neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As they are so new the locality is still very vague, sorry for that, but we are sure that time will clarify the locality as well as the reason why they fluoresce so strongly.
Zacatecas  Mexico (2013-2014)

Specimen size: 2.7 × 1.8 × 0.9 cm = 1.1” × 0.7” × 0.4”

TV67AA2: A novelty at Tucson 2014. Transparent botryoidal growths on matrix. This kind of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic standing up on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light, neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As these are so new the locality is still very vague, sorry for that, but we are sure that time will clarify the locality as well as the reason why they fluoresce so strongly.
Zacatecas  Mexico (2013-2014)

Specimen size: 4.7 × 3.7 × 2.2 cm = 1.9” × 1.5” × 0.9”

TC16AA2: A novelty at Tucson 2014. Transparent botryoidal growths on matrix. This kind of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic standing up on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light, neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As these are so new the locality is still very vague, sorry for that, but we are sure that time will clarify the locality as well as the reason why they fluoresce so strongly.
Zacatecas  Mexico (2013-2014)

Specimen size: 6 × 4.1 × 3.3 cm = 2.4” × 1.6” × 1.3”

TE26AA5: A novelty at Tucson 2014. Transparent botryoidal growths on matrix, with small sprays of whitish, elongated and tubular forms. This kind of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic and stands up well on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light: neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As the find is so new the locality is still very vague; sorry for that, but we are sure that time will clarify the locality as well as the reason why the specimens fluoresce so strongly. On this sample the peculiar tubular growths above cited, which you can see on the close-up image, caught our attention. We had them analyzed, and they proved to be an unspecified form of silica. We will send a copy of the analysis to the buyer.
Zacatecas  Mexico (2013-2014)

Specimen size: 8.2 × 5.1 × 4.5 cm = 3.2” × 2.0” × 1.8”

TF66AC6: Very transparent and bright botryoidal growth on matrix. One of the best samples of this find. This type of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic and stands up well on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light: neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As the find is so new the locality is still very vague; sorry for that, but we are sure that time will clarify the locality as well.
Zacatecas  Mexico (2013-2014)

Specimen size: 9.5 × 9.3 × 4 cm = 3.7” × 3.7” × 1.6”

EL26AI1: From a find between 2008 and 2011 by local prospectors on a not well known, until today, mineral locality. Group of crystals, one of them clearly dominant, with a very well defined Japan law twin, with very sharp crystal forms. They are clear, colorless and bright with reddish shades in some areas due to iron oxide inclusions.
Harrison Lake, Chilliwack, Regional District Fraser Valley, British Columbia  Canada (2008-2011)

Specimen size: 3.5 × 2.8 × 2.6 cm = 1.4” × 1.1” × 1.0”

Main crystal size: 1.3 × 1.2 cm = 0.5” × 0.5”

EJ46AI1: From a find between 2008 and 2011 by local prospectors on a not well known, until today, mineral locality. Group of crystals, one of them dominant and very aerial, with a very well defined Japan law twin and very sharp crystal forms. It is transparent, colorless and bright with reddish shades in some areas due to iron oxide inclusions.
Harrison Lake, Chilliwack, Regional District Fraser Valley, British Columbia  Canada (2008-2011)

Specimen size: 4.2 × 2.2 × 2.3 cm = 1.7” × 0.9” × 0.9”

Main crystal size: 1.6 × 1.2 cm = 0.6” × 0.5”

EE69AA4: Floater crystal consisting of a complete tabular cyclic twin, very bright and with a considerable size for the species. An excellent Canadian classic whose old label we will send to the buyer.
Henderson #2 Mine, Chibougamau, Nord-du-Québec, Québec  Canada

Specimen size: 1.9 × 1.6 × 0.4 cm = 0.7” × 0.6” × 0.2”

MF93AA7: Complete tabular Cubanite crystal with a very sharp twin forming a hexagonal shape, perfectly defined and on a matrix of lenticular Calcite crystals, indicating that the sample has not been acid-treated, so it has preserved its original intense luster.
Henderson No. 2 Mine, Chibougamau, Nord-du-Québec, Québec  Canada (1985)

Specimen size: 7.2 × 4.3 × 1.7 cm = 2.8” × 1.7” × 0.7”

Main crystal size: 1.4 × 0.6 cm = 0.6” × 0.2”

TX86F2: Green Grossular, and above all as intense a green as this one, is uncommon. As well as that the dodecahedral crystal is very well defined. Specimens from this locality are not that common anymore.
LAB mine, Saint-Joseph-de-Coleraine, Québec  Canada

Specimen size: 1.5 × 1.5 × 1.5 cm = 0.6” × 0.6” × 0.6”

TC12R9: Deep green transparent and bright dodecahedral crystals of Andradite. They are implanted on a surface of small white crystals of Pectolite.
LAB mine, Saint-Joseph-de-Coleraine, Québec  Canada (15/08/1997)

Specimen size: 2.9 × 2.8 × 1.3 cm = 1.1” × 1.1” × 0.5”

Main crystal size: 0.6 × 0.4 cm = 0.2” × 0.2”