TN87AL4: Aggregate of idiomorphic Brochantite crystals, with sharp faces and edges, very deep color, covered by a later growth, of very aerial fibrous crystals, lighter in color and with a satin luster.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico

Specimen size: 3.2 × 2.1 × 1.4 cm = 1.26” × 0.83” × 0.55”

Main crystal size: 2.5 × 0.6 cm = 0.98” × 0.24”

TH88AE9: Aggregate of elongated idiomorphic crystals with very well defined faces and edges and sharp chisel-like terminations. Their definition, crystal size, as well as their color and luster and, in general, very high quality, make them the world's best for this species.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 3.6 × 2.5 × 1 cm = 1.42” × 0.98” × 0.39”

Main crystal size: 1.2 × 0.5 cm = 0.47” × 0.20”

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 = 1.77” × 1.22” × 0.67”

Main crystal size: 1.6 × 0.3 cm = 0.63” × 0.12”

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 = 1.93” × 1.89” × 0.28”

Main crystal size: 1.4 × 0.5 cm = 0.55” × 0.20”

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 = 2.64” × 1.61” × 0.55”

Main crystal size: 6.6 × 0.4 cm = 2.60” × 0.16”

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 = 4.33” × 2.76” × 1.34”

Main crystal size: 1.5 × 0.3 cm = 0.59” × 0.12”

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 = 5.20” × 4.80” × 2.76”

Main crystal size: 1.3 × 0.4 cm = 0.51” × 0.16”

XM90EE: Rosette aggregate of flattened Volborthite crystals, well defined, with good luster and a deep olive-green color. The Milpillas Volborthite specimens are considered the best of the species due to their quality, luster and crystal size, and set a new standard for the species. An excellent miniature of great quality.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 1 × 0.5 × 0.3 cm = 0.39” × 0.20” × 0.12”

TV68AE9: Rosette aggregate, on matrix, of flattened and very well defined crystals that are bright with a deep green color. The Milpillas Volborthite samples are probably the world's best for their quality, luster, and crystal size, and they are considered a new standard for this species. An excellent thumbnail.
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 × 0.9 × 0.8 cm = 0.39” × 0.35” × 0.31”

Main crystal size: 0.9 × 0.6 cm = 0.35” × 0.24”

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 = 0.59” × 0.43” × 0.24”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

XM110EL: Groups of acicular crystals of Volborthite with a deep olive-green color on a Dickite matrix. The Milpillas Volborthite specimens are considered the best of the species due to their quality, luster and crystal size, and set a new standard for the species. An excellent miniature of great quality.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 2.1 × 1.2 × 0.4 cm = 0.83” × 0.47” × 0.16”

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 = 0.91” × 0.59” × 0.63”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”

TJ86AK3: Rosette of sharp, flattened, bright Volborthite crystals, deep olive-green, with a little matrix on the back. The specimens of Volborthite from Milpillas are considered the best of the species for their quality, luster and crystal size, setting a new standard for the species. An excellent miniature of great quality.
Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 2.7 × 2.2 × 1.3 ×  cm = 1.06” × 0.87” × 0.51”

TX66AE8: Very aerial aggregate of unusually sharp, isolated and complete Volborthite crystals. They have very well defined forms, are bright, have a deep green color and are on matrix, with fibrous Brochantite aggregates.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 3.1 × 1.9 × 1.5 cm = 1.22” × 0.75” × 0.59”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”

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 = 1.26” × 1.14” × 0.75”

Main crystal size: 1.1 × 0.5 cm = 0.43” × 0.20”

TC93AJ4: Very aerial group of sharp flattened crystals that are very bright and with a deep green color. The Milpillas Volborthites are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and crystal size, so all together these are a new standard for this species.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 3.2 × 3 × 1.5 cm = 1.26” × 1.18” × 0.59”

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, level 1280, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)

Specimen size: 3.4 × 3 × 2.7 cm = 1.34” × 1.18” × 1.06”

Main crystal size: 3 × 1.7 cm = 1.18” × 0.67”

TB92AF5: Rosette growths on matrix of flattened Volborthite crystals that are well defined, bright with a deep green color. The Milpillas Volborthite samples are considered among the world's best for their quality, luster, and crystal size, and they are a new standard for this species. Furthermore, this particular sample is from the selected group of the best Volborthites found there.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 6.7 × 3.9 × 2.7 cm = 2.64” × 1.54” × 1.06”

Main crystal size: 3 × 1.6 cm = 1.18” × 0.63”

TC16AH5: Polycrystalline surface of crystals with the dominant octahedron, but also with the faces of the dodecahedron and the cube. The crystals are translucent, very bright with a vivid red color and are on matrix. Of the best quality for that mine.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2012-2013)

Specimen size: 6.4 × 3.7 × 2.3 cm = 2.52” × 1.46” × 0.91”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

TB16AH5: Polycrystalline surface of crystals with the dominant octahedron, but also with the faces of the dodecahedron and the cube. The crystals are translucent, very bright with a vivid red color and are on matrix, with white fibrous Dickite aggregates. Of the best quality for that mine.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2012-2013)

Specimen size: 7 × 4.8 × 1.8 cm = 2.76” × 1.89” × 0.71”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”

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 = 3.39” × 2.76” × 1.85”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

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 = 3.78” × 2.13” × 1.85”

Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”

TC26AJ4: 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. A rarity from Milpillas. The sample has been analyzed and we will send a copy of this analysis to the buyer.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 0.8 × 0.8 × 0.3 cm = 0.31” × 0.31” × 0.12”

TZ6AJ4: 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 rarity from Milpillas. The sample has been analyzed and we will send a copy of this analysis to the buyer.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 1 × 0.6 × 0.2 cm = 0.39” × 0.24” × 0.08”

TX36AJ4: 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. A rarity from Milpillas. The sample has been analyzed and we will send a copy of this analysis to the buyer.
The sample has been noted and photographed in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 616 in the volume 52, number 5, September-October 2021
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 1 × 0.7 × 0.6 cm = 0.39” × 0.28” × 0.24”

TM26AJ4: 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. A rarity from Milpillas. The sample has been analyzed and we will send a copy of this analysis to the buyer.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 1.1 × 0.6 × 0.5 cm = 0.43” × 0.24” × 0.20”

TQ46AD0: A novelty at Tucson 2016. Aggregate of fibrous crystals, very well defined for this unusual vanadate, with a yellowish-green color and on matrix. A new rarity from Milpillas. The sample has been analyzed and we’ll send a copy of this analysis to the buyer.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 1.1 × 1 × 0.9 cm = 0.43” × 0.39” × 0.35”

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 = 0.71” × 0.43” × 0.16”

TB88AL2: A novelty at Tucson 2019. Spherulitic growths and felted aggregates of Shattuckite, with an intense deep color and encompassed in small Quartz crystals that protect them. On Quartz matrix, with Chrysocolla. We highlight, apart from the beauty of the specimen, the presence of crystallized Quartz, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 5.3 × 3.9 × 2.1 cm = 2.09” × 1.54” × 0.83”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

HM320TF: Spherulitic growths and felted aggregates of Shattuckite, with a very intense and deep color, surrounded by small Quartz crystals that protect them. They occur on a Quartz matrix and have Chrysocolla coatings. We highlight the presence of crystallized Quartz, a very rare species in Milpillas.
We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 5.3 × 3.9 × 3.1 cm = 2.09” × 1.54” × 1.22”

TR53AL2: A novelty at Tucson 2019. Spherulitic growths and felted aggregates of Shattuckite, with an extraordinarily intense and deep color, encompassed in small Quartz crystals that protect them. On Quartz matrix, with Chrysocolla. We highlight, apart from the beauty of the specimen, the presence of crystallized Quartz, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 5.8 × 3.8 × 2.7 cm = 2.28” × 1.50” × 1.06”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TG99AL1: A novelty at Tucson 2019. Spherulitic growths and felty aggregates of Shattuckite, with intense and deep color, enclosed in small Quartz crystals that protect them. In Quartz matrix, with Chrysocolla and centered aggregates of acicular Malachite crystals. We emphasize, apart from the beauty of the specimen, the presence of Quartz crystals, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
The specimen has been reviewed, photographed and published as a novelty from Tucson 2020 in the Russian magazine ‘Mineral Observer’ on page 60 in the volume 25, number 2

Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 6.7 × 5.1 × 1.9 cm = 2.64” × 2.01” × 0.75”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TP98AL1: A novelty at Tucson 2019. Spherulitic growths and felty aggregates of Shattuckite, with intense and deep color, enclosed in small Quartz crystals that protect them, in Quartz matrix. We highlight, apart from the beauty of the specimen, the presence of Quartz crystals, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 7.5 × 4.8 × 1.7 cm = 2.95” × 1.89” × 0.67”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TC69AL7: A novelty at Tucson 2019: Spherulitic growths and felty aggregates of Shattuckite with an intense deep color, encompassed in small Quartz crystals that protect them. On matrix with light blue Shattuckite. We highlight, apart from the beauty of the specimen, the presence of crystallized Quartz, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 7.8 × 7.1 × 3.9 cm = 3.07” × 2.80” × 1.54”

TV52AL2: A novelty at Tucson 2019. Spherulitic growths and felted aggregates of two generations of Shattuckite with different shades of blue, the second one more intense and deep, encompassed in small Quartz crystals that protect them. On Quartz matrix, with Chrysocolla and Malachite. We highlight, apart from the beauty of the specimen, the presence of crystallized Quartz, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 8 × 5.3 × 3.8 cm = 3.15” × 2.09” × 1.50”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

TC63AJ2: A novelty at Tucson 2019. Shattuckite surfaces with two concentric generations, a first one felted and with a very intense deep color, and a second one botryoidal with a sky blue color. The first one is included in very bright Quartz crystals on a matrix partially coated by pale green Chrysocolla. As well as their beauty, we must note that, as a novelty, the presence of the well-crystallized Quartz at Milpillas is very rare.
We’ll send a copy of the analysis of the Shattuckite to the buyer.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 8.5 × 5.7 × 1.9 cm = 3.35” × 2.24” × 0.75”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TB14AJ2: A novelty at Tucson 2019. Shattuckite surfaces with two concentric generations, a first one felted and with a very intense deep color, and a second one botryoidal with a sky blue color. The first one is included in very bright Quartz crystals on a matrix partially coated by pale green Chrysocolla. As well as their beauty, we must note that, as a novelty, the presence of the well-crystallized Quartz at Milpillas is very rare.
We’ll send a copy of the analysis of the Shattuckite to the buyer.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2019, page 78
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 9.7 × 6.2 × 2.2 cm = 3.82” × 2.44” × 0.87”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TT52AL2: A novelty at Tucson 2019. Spherulitic growths and felted aggregates of Shattuckite, with an intense and deep color and encompassed in small Quartz crystals that protect them. On Quartz matrix, with Chrysocolla and Malachite. We highlight, apart from the beauty of the specimen, the presence of crystallized Quartz, a very rare species in Milpillas. We will send the buyer a copy of the Shattuckite analysis.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 10.5 × 5.6 × 2.2 cm = 4.13” × 2.20” × 0.87”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TA36AJ2: A novelty at Tucson 2019. Shattuckite surfaces with two concentric generations, a first one felted and with a very intense deep color, and a second one botryoidal with a sky blue color. The first one is included in very bright Quartz crystals on a matrix partially coated by pale green Chrysocolla. As well as their beauty, we must note that, as a novelty, the presence of the well-crystallized Quartz at Milpillas is very rare.
We’ll send a copy of the analysis of the Shattuckite to the buyer.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2019)

Specimen size: 11 × 8.7 × 1.6 cm = 4.33” × 3.43” × 0.63”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

TM47AD1: A novelty at Tucson 2016. Very sharp platy crystals, transparent, very bright and with a reddish color probably due to Hematite inclusions. They are on a Goethite matrix and are very unusual for the locality.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (06/2015)

Specimen size: 12 × 7.2 × 1.7 cm = 4.72” × 2.83” × 0.67”

Main crystal size: 0.9 × 0.4 cm = 0.35” × 0.16”

TN26AL4: Complex Pyrite crystal, very rich in faces, that is colored black due to a uniform Chalcocite coating, with good luster and on matrix. We will deliver the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label. The Chalcocites were analyzed and we will send a copy of that analysis to the buyer.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2013)

Specimen size: 2.8 × 2.6 × 2.4 cm = 1.10” × 1.02” × 0.94”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”

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 = 2.24” × 2.24” × 1.46”

Main crystal size: 1.9 × 1.8 cm = 0.75” × 0.71”

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 = 3.31” × 2.24” × 1.89”

Main crystal size: 2.1 × 1.6 cm = 0.83” × 0.63”

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 and in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 615 in the volume 52, number 5, September-October 2021
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2010)

Specimen size: 19.3 × 13.5 × 5.2 cm = 7.60” × 5.31” × 2.05”

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 Álamos, Sonora  Mexico

Specimen size: 5 × 3.9 × 2.1 cm = 1.97” × 1.54” × 0.83”

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.
Municipio Álamos, Sonora  Mexico

Specimen size: 2.5 × 1.8 × 0.6 cm = 0.98” × 0.71” × 0.24”

TC53AL6: Group of lamellar crystals of Wulfenite, on matrix, with very well defined faces, transparent, bright, uniform orange in color and partially covered with very intense and deep orange spheroidal Mimetite aggregates. A Mexican classic.
San Francisco Mine, Cerro Prieto, Cucurpe, Municipio Cucurpe, Sonora  Mexico

Specimen size: 6.7 × 6 × 3.6 cm = 2.64” × 2.36” × 1.42”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”

ET27AM4: Very sharp crystals of Wulfenite, rich in crystal forms, transparent, with a bright luster and more intense orange color than usual. On a limonite matrix with yellowish green microcrystals of Mimetite.
San Francisco Mine, Cerro Prieto, Cucurpe, Municipio Cucurpe, Sonora  Mexico

Specimen size: 8.3 × 5.7 × 2.9 cm = 3.27” × 2.24” × 1.14”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”

NV67AN0: Spheroidal aggregates on a matrix of very sharp crystals of Emmonsite, a rare iron tellurate, translucent, with good luster and an intense and uniform green color.
The specimen comes from the Ignacio Gaspar Sintes collection (number EMM-2) whose collection card we will send to the buyer.
Moctezuma Mine (Bambolla Mine), Moctezuma, Municipio Moctezuma, Sonora  Mexico

Specimen size: 5.8 × 3.5 × 4 cm = 2.28” × 1.38” × 1.57”

TY48AL4: Tellurite crystals on matrix, some of them with well defined faces and edges and good terminations, something rare in this species, not frequent in collections. The crystals, translucent, have an intense creamy color and good luster, and are implanted on matrix, with Quartz.
The specimen, which comes from Scott J. Williams, was later in the collection of V.J. Hoffmann. Victor J. Hoffmann and John S. White were very close friends while both were graduate students in geology at the University of Arizona. Between the years of 1960 and 1962 they formed a mineral business which was named Delmann Minerals. We will send the specimen with the two supporting labels.
Moctezuma Mine (Bambolla Mine), Moctezuma, Municipio Moctezuma, Sonora  Mexico

Specimen size: 3.4 × 2.7 × 2.4 cm = 1.34” × 1.06” × 0.94”

Main crystal size: 1.8 × 0.4 cm = 0.71” × 0.16”

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 = 1.69” × 1.54” × 1.06”

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, Sonora  Mexico

Specimen size: 6.7 × 4.7 × 4.3 cm = 2.64” × 1.85” × 1.69”