Reference Specimens
The Silvane Collection

(para ver esta página en español)

Previous Page Previous Page Next Page Next Page

  Back to the Index of the Reference Specimens Page bottom

Photos by Fabre Minerals. Under Creative Commons license

This page provides a selection of the specimens that were in the Silvane Collection that have passed through the Fabre Minerals website and, due to their quality,
rarity, or significance as specimens from interesting locations, have been preserved as reference specimens in #MVM
We hope that you enjoy your visit, even if it is just to see this page!

Carles Curto Text: Carles Curto (former Geology Museum, Barcelona curator) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White

 


The Silvane Collection

In the world of collecting there is always a small group of prestigious collections that is not well known. This is the case with the Silvane collection, which was created over the last 25 years through the efforts of Josep Amigó (1924-2008).

Devoted to his family, he decided to name his collection the Silvane Collection, which is the result of his linking together the names of his two grand-daughters, Silvia and Ana Elena (whose nickname was Anelen).

Sr. Amigó, as we knew him to be, was above all else a collector and while over the years he had many collections, including trains, stamps, coins, etc, he always said that minerals were the most important, so in the end he only collected minerals. He always said that he could find new details, each unforgettable, every time he looked at a specimen, and that was something that did not occur in any of his other collections.

Years ago he built a collection of good quality minerals but then he got rid of them, as they did not fulfill his desire for systematic variety nor represent his good taste. Then, in the mid 70s and start of the 80s, large finds were made in the Kalahari, Touissit and India that produced an excellent chance to obtain new species. At the same time the views about mineral collections modernized from the point of view of their patrimony, preservation and the presentation of material. With all of this the mineral collecting bug within Sr. Amigó was reawakened. His meeting with Jordi during the Expominer Mineral Show of 1985 and the purchase of a blue Barite from the Moscona mine further animated him. From then on he was a faithful visitor to Jordi's stockroom every time that Jordi came back from a trip or show, which enabled him to pick the material he liked most. This chance to choose, along with the arrival of excellent material from Russia, Afghanistan, Pakistan and, more recently, China, just reinforced and confirmed his passion.

Given time, discretion and good taste, the Silvane collection grew until it contained more than 700 specimens, some of which are exceptional but all of which were selected with the best taste and clear criteria. Sr. Amigó never bragged about his great knowledge, but he always applied a clear principal in what he selected: apart from liking it and its aesthetics the specimen had to connect with him. So it was this mixture of intuition and good taste that came together to create this excellent collection, which is far better than the average Spanish collection.

I especially recall the meetings we used to have in Jordi's stockroom during which Sr. Amigó would tell us the 'whys', both for what he selected and what he rejected, all with his caustic but fine sense of humor. These meetings often ended in front of a table that was well laid out with great dishes and good wines. For him (and also for me) it was the corollary of a perfect mineral session. Along with these meetings I recall with great satisfaction the frequent visits to his house during which, apart from detailed discussions about minerals and mineralogy, we had the chance to touch on a wide range of both divine and human subjects.

So, a precious collection, all of a very high level, with no poor pieces or trash, in which Fluorite and Calcite are very well represented, since he liked them a lot, but which also includes extraordinary specimens of fairly rare material, as he knew when to listen (and weigh) advice. If someone recommended strongly a species that he did not know and he connected with it, then he would end up pleased. Classics from Tsumeb, Morocco, USA, etc, etc, and then modern classics from Russia, China and Pakistan-Afghanistan ennoble the collection, whose balance between esthetics and rareness is very satisfactory.

I am certain that this collection will more than match the wishes of many collectors who will have to (and need to) appreciate each and every one of the specimens within it.

Carles Curto Milà

 

 




Sr. Josep Amigó

Sr. Amigó in our warehouse, in August 2004,
having a good time looking for specimens
for his collection.

Sr. Josep Amigó

(...) but all of which were selected with
the best taste and clear criteria.

Proustite

Willemite   Sulfur   Ludlamite

 

 

Copper

 

Labels from the Silvane Collection

Silvane collection labelSilvane collection label


MOROCCO


Aragonite
Aragonite.
 

AD59M9: Very aerial and esthetic group of doubly terminated, twinned crystals. They are especially translucent and bright.
Tazouta, Sefrou, Sefrou Province, Fès-Boulemane  Morocco

Specimen size: 5.4 × 3.8 × 3.2 cm = 2.13” × 1.50” × 1.26”

Main crystal size: 4.5 × 1.4 cm = 1.77” × 0.55”

Calcite with Pyrite
 

AZ6N4: Group of fine laminar crystals of Calcite of hexagonal shape, with color zoning and small recrystallizations of the same Calcite in some areas of the piece. The crystals are on a Quartz matrix with small Pyrite crystals.
El Hammam, Ait Mimoune, Khémisset Province, Rabat-Salé-Kénitra Region  Morocco

Specimen size: 9.3 × 5.4 × 4.2 cm = 3.66” × 2.13” × 1.65”

Main crystal size: 2 × 1.8 cm = 0.79” × 0.71”

Minor fluorescence long & short UV
Calcite with Pyrite.
Calcite with Pyrite.
Fluorite with Calcite
Fluorite with Calcite. Fluorite with Calcite.
 

AC47M8: Group of beveled cubic crystals of very deep color, with mosaic growths on the cube faces and surrounded by Calcite crystals.
Tounfit, Boumia, Midelt Province, Drâa-Tafilalet Region  Morocco (2006)

Specimen size: 9.8 × 5.9 × 2.9 cm = 3.86” × 2.32” × 1.14”

Main crystal size: 3.1 × 1.1 cm = 1.22” × 0.43”

Epidote with Quartz
 

AR16N4: Fan groups of very well defined crystals with excellent terminations, color and luster, on a matrix of small crystals of Quartz.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (02/2005)

Specimen size: 5.9 × 2.7 × 2 cm = 2.32” × 1.06” × 0.79”

Epidote with Quartz. Front
Front
Epidote with Quartz. Top
Top
Azurite
Azurite. Front
Front
Azurite. Rear
Rear
 

AN26M8: Rosette growth floater of very well defined crystals and of an excellent blue color, clearer than usual for Azurite crystals of this size.
Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (2000)

Specimen size: 4 × 3.5 × 1.9 cm = 1.57” × 1.38” × 0.75”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Azurite
 

AK16M4: From a not well known Moroccan locality, this Azurite stands out for its very sharp crystals and its color, lighter than other Azurites from Morocco. The Azurite group is very esthetic and aerial. On matrix.
Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (1996)

Specimen size: 4.6 × 3.8 × 2.6 cm = 1.81” × 1.50” × 1.02”

Azurite. Front
Front
Azurite. Top
Top
Cobaltoan Calcite
Cobaltoan Calcite. Cobaltoan Calcite.
 

AD7M4: Group of crystals showing well defined rhombohedron terminal faces and excellent color, between mauve to pink.
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco (01/2006)

Specimen size: 5.8 × 5 × 2.5 cm = 2.28” × 1.97” × 0.98”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

Fluorescence short UV & minor fluorescence long UV
Erythrite with Quartz
 

AR37N4: Groups of very well defined crystals of excellent luster and color, on a metallic matrix and an unusual association with white crystals of Quartz.
Bou Azzer mining district, Drâa-Tafilalet Region  Morocco (1990)

Specimen size: 12 × 7.4 × 5.9 cm = 4.72” × 2.91” × 2.32”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

Erythrite with Quartz.
Erythrite with Quartz.
Anorthoroselite with Roselite and Calcite
Anorthoroselite with Roselite and Calcite. Anorthoroselite with Roselite and Calcite.
 

AY27M6: Groups of small lenticular, slightly orange colored, crystals of Anorthoroselite, partially covering more isolated crystals of Roselite, with very well defined faces and edges. The sample is with an analysis of the Anorthoroselite.
Bou Azzer East, Vein 7, Bou Azzer mining district, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (1960)

Specimen size: 2.8 × 2 × 1.7 cm = 1.10” × 0.79” × 0.67”

Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”

Twinned Cerussite
 

AG27N4: Group of crystals showing the well known "butterfly" twins. They are on matrix and have an excellent smoky color and are extraordinarily bright.
Shaft IX (Puit IX), Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (1998)

Specimen size: 3.8 × 3.7 × 1.5 cm = 1.50” × 1.46” × 0.59”

Main crystal size: 1.6 × 1 cm = 0.63” × 0.39”

Minor fluorescence long & short UV
Twinned Cerussite.
Twinned Cerussite.
Azurite
Azurite. Azurite.
 

AF56M9: Globular growths of very well defined crystals. They are bright and have an excellent color, clearer than usual for the pieces from Touissit. They are on limonite matrix.
Shaft IX (Puit IX), Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (04/1995)

Specimen size: 5.6 × 3.5 × 3 cm = 2.20” × 1.38” × 1.18”

Mottramite with Vanadinite-(As)
 

AZ26M8: Creamy crystals of arsenical Vanadinite, some of them doubly terminated, on a bed of black microcrystals of Mottramite all on Dolomite matrix.
Shaft IX (Puit IX), Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (1998)

Specimen size: 8.8 × 5 × 3.1 cm = 3.46” × 1.97” × 1.22”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Mottramite with Vanadinite-(As).
Mottramite with Vanadinite-(As).
Aragonite (variety tarnowitzite)
Aragonite (variety tarnowitzite).
 

AD11M6: Group of twinned crystals of this rare plumbian variety of Aragonite. They are very well defined and have neat color zonating. They are white on the top and practically uncolored on the prism. They are on a matrix with small crystals of Dolomite.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco

Specimen size: 4.2 × 3.4 × 2.5 cm = 1.65” × 1.34” × 0.98”

Main crystal size: 1.9 × 1.1 cm = 0.75” × 0.43”

Very fluorescent long & short UV
Malachite with Dolomite
 

AB59M8: Acicular prismatic crystals of Malachite on a matrix of crystallized Dolomite. The color and the fact that this kind of Malachite is practically unknown in Touissit made us think it was Olivenite. A further analysis confirmed the crystals as Malachite.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco

Specimen size: 4.2 × 3.3 × 3.3 cm = 1.65” × 1.30” × 1.30”

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

Malachite with Dolomite.
Malachite with Dolomite.

AFRICA


Cobaltoan Dolomite
Cobaltoan Dolomite.
 

AG16N2: Group of flattened rhombohedral crystals that are almost lenticular, of exceptionally intense color. On matrix.
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 7.6 × 3.8 × 2.9 cm = 2.99” × 1.50” × 1.14”

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

Cuprite with Calcite
 

AJ96N6: Octahedral crystals on matrix, one of them sharp and with very well defined forms. It is very bright, quite transparent and a deep red color. The crystals and the matrix itself are sparsely coated by small concretions of white Calcite.
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 5.5 × 5 × 6.8 cm = 2.17” × 1.97” × 2.68”

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

Cuprite with Calcite. Cuprite with Calcite.
Carrollite with Calcite and Quartz
Carrollite with Calcite and Quartz.
Carrollite with Calcite and Quartz. Carrollite with Calcite and Quartz.
 

AL58N2: Complex very aerial crystal on matrix. It combines the forms of the octahedron, dominant, the dodecahedron and the cube. It has small associated crystals of Calcite and Quartz.
Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (2002)

Specimen size: 8.2 × 4.5 × 3 cm = 3.23” × 1.77” × 1.18”

Main crystal size: 1..3 × 0.9 cm = 0.39” × 0.35”

Carrollite with Chalcopyrite and Calcite
 

AT46N4: Big octahedral crystal of Carrollite of very well defined and bright faces with very well marked triangular forms of growth. Very unusual is the presence of abundant and very well defined crystals of Chalcopyrite that have grown epigenetically on the Carrollite. On Calcite matrix.
Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (07/2002)

Specimen size: 7.8 × 5.3 × 4.5 cm = 3.07” × 2.09” × 1.77”

Carrollite with Chalcopyrite and Calcite. Front
Front
Carrollite with Chalcopyrite and Calcite. Top
Top
Carrollite with Chalcopyrite and Calcite.
Aegirine with Orthoclase
Aegirine with Orthoclase.
 

AL70N2: Group of crystals of very well defined faces and edges and very acute terminations. It is on a matrix of a small group of white crystals of Orthoclase.
Mount Malosa, Zomba District  Malawi

Specimen size: 3.6 × 2.8 × 2.6 cm = 1.42” × 1.10” × 1.02”

Main crystal size: 3.3 × 0.4 cm = 1.30” × 0.16”

Twinned Chrysoberyl
 

AE2M8: An excellent twin, complete and a floater, of a magnificent transparency, luster and intense and uniform yellow color. An extraordinary piece.
Lac Alaotra, Alaotra-Mangoro, Tamatave  Madagascar

Specimen size: 4.1 × 2.8 × 0.5 cm = 1.61” × 1.10” × 0.20”

Minor zoned fluorescence long & short UV
Twinned Chrysoberyl. Front
Front
Twinned Chrysoberyl. Rear
Rear
Calcite
Calcite.
Calcite.
 

AT46M4: Group of rhombohedral Calcite crystals with very sharp faces and edges and a delicate pink color due to the Hematite inclusions. Color is zoned and more intense on edges.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 10 × 7.8 × 4.5 cm = 3.94” × 3.07” × 1.77”

Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”

Fluorescence short UV & minor fluorescence long UV
Mimetite with Galena
 

AZ96N2: Very acute dipyramidal crystals, some of them doubly terminated, very transparent, bright and of excellent yellow color. On a Galena matrix.
It was originally in the Folch duplicates collection, whose handwritten note will be sent to the buyer with the Silvane collection label.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 3.4 × 3.2 × 2.8 cm = 1.34” × 1.26” × 1.10”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”

Mimetite with Galena. Front
Front
Mimetite with Galena. Top
Top
Smithsonite
Smithsonite. Front
Front
Smithsonite. Side
Side
Smithsonite. Top
Top
 

AE27M4: Excellent miniature. Well defined Smithsonite crystal with very elongated prism faces, very rare in Tsumeb crystals. The crystal is very transparent and esthetically implanted on a metallic matrix. This piece is from the Anne Voileau collection, as we can read in the Jordi Fabre handwritten note on the original label.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.6 × 1.8 × 2.9 cm = 1.42” × 0.71” × 1.14”

Main crystal size: 2.5 × 0.5 cm = 0.98” × 0.20”

Manganoan Smithsonite
 

NF48M6: Group of sharp, very well defined, rhombohedral crystals with excellent luster and transparency. The color is very intense and they are on matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 5.5 × 3.5 × 2 cm = 2.17” × 1.38” × 0.79”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

Manganoan Smithsonite.
Manganoan Smithsonite.
Willemite with Dolomite
Willemite with Dolomite. Willemite with Dolomite.
Willemite with Dolomite  

AE94M4: Groups of really well defined Willemite crystals on matrix, very uncommon for the species. We call your attention on the intense light green blue color. The piece is from the Martin Zinn collection and we will send the label to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6.8 × 3.1 × 3 cm = 2.68” × 1.22” × 1.18”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”

Fluorescence short UV & minor fluorescence long UV
Copper with Calcite
 

AM76M8: Arborescent growth with globular terminations, with two groups of crystals of white, very well defined Calcite. Very elegant.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.7 × 3.3 × 2.8 cm = 1.46” × 1.30” × 1.10”

Copper with Calcite. Front
Front
Copper with Calcite. Side
Side
Descloizite with Dolomite and Mimetite
Descloizite with Dolomite and Mimetite. Front
Front
Descloizite with Dolomite and Mimetite. Side
Side
 

AJ37M6: Group on matrix of very well defined and bright crystals. On one side of the matrix are white Dolomite crystals. On the other are small crystals of Mimetite at the base partially covering the Dolomite.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 6.1 × 3.5 × 2.7 cm = 2.40” × 1.38” × 1.06”

Main crystal size: 1.3 × 1.1 cm = 0.51” × 0.43”

Dolomite fluorescent long & short UV
Hausmannite with Calcite
 

AG96M4: Parallel growth of pseudo-octahedral Hausmannite crystals, very sharp and with an extraordinary luster. The piece is accompanied by a handwritten label from Desmond Sacco, well known South African collector, which we will send to the buyer.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (09/2005)

Specimen size: 3.3 × 3.2 × 2.3 cm = 1.30” × 1.26” × 0.91”

Hausmannite with Calcite. Front
Front
Hausmannite with Calcite. Rear
Rear
Rhodochrosite
Rhodochrosite.
Rhodochrosite.
 

AR54M4: An uncommon specimen for this locality. Botryoidal growths and not well defined Rhodochrosite crystals with an intense and deep color.
Hotazel, Kuruman, Kalahari  South Africa

Specimen size: 8.1 × 4.9 × 3.5 cm = 3.19” × 1.93” × 1.38”

Inesite with Calcite
 

AC86M9: Centered growths of acicular crystals of good deep color, with white scalenohedral crystals of Calcite and on matrix.
Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 7.1 × 3.9 × 3.1 cm = 2.80” × 1.54” × 1.22”

Calcite fluorescent long & short UV
Inesite with Calcite. Inesite with Calcite.

BRAZIL


Elbaite with Albite and Muscovite
Elbaite with Albite and Muscovite. Front
Front
Elbaite with Albite and Muscovite. Top
Top
 

AC86P1: Parallel growth of very well defined Elbaite crystals. They are bright, of excellent and very uniform deep green color and terminated by a smooth and also bright pinacoid. On Albite matrix, with Muscovite.
Barra de Salinas, Coronel Murta, Vale do Jequitinhonha, Minas Gerais  Brazil (2006)

Specimen size: 5 × 3.4 × 3.6 cm = 1.97” × 1.34” × 1.42”

Main crystal size: 1.8 × 0.7 cm = 0.71” × 0.28”

Elbaite with Mica
 

NA29P9: Doubly terminated crystal with complex terminations and a fibrous aspect along the prism. Its transparency is good and the color excellent, with very well marked color zoning and predominant wine tones. It is on a matrix of crystallized Mica.
Barra de Salinas, Coronel Murta, Vale do Jequitinhonha, Minas Gerais  Brazil

Specimen size: 4.8 × 2.7 × 2.8 cm = 1.89” × 1.06” × 1.10”

Main crystal size: 4.6 × 1.4 cm = 1.81” × 0.55”

Fluorescence on the matrix (short and long UV)
Elbaite with Mica. Front
Front
Elbaite with Mica. Rear
Rear
Elbaite (indicolite) with Quartz
Elbaite (indicolite) with Quartz. Front
Front
Elbaite (indicolite) with Quartz. Side
Side
Elbaite (indicolite) with Quartz. Top
Top
 

AB76M4: Sharp Indicolite crystal showing a very striated top termination and a recrystallized bottom one. The specimen shows throughout a deep and uniform blue color. As a matrix, a strongly deformed but complete Quartz crystal. This Indicolite specimen is exceptional for its quality and for being on matrix.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2020, page 68
Santa Rosa Mine, Itambacuri, Vale do Rio Doce, Minas Gerais  Brazil (±1990)

Specimen size: 8.1 × 4.5 × 3 cm = 3.19” × 1.77” × 1.18”

Main crystal size: 4.4 × 0.9 cm = 1.73” × 0.35”

Milarite with Cleavelandite
 

AH16N6: Complete doubly terminated crystal of this uncommon species. It is white, has very well defined faces and edges and has excellent pinacoidal terminations. It stands on a matrix of laminar crystals of Albite (variety Cleavelandite).
Jacupiranga, Minas Gerais  Brazil

Specimen size: 4.9 × 3.3 × 1.3 cm = 1.93” × 1.30” × 0.51”

Main crystal size: 0.8 × 0.4 cm = 0.31” × 0.16”

Cleavelandite fluorescent short UV & low fluorescence long UV
Milarite with Cleavelandite. Milarite with Cleavelandite.
Fluorapatite with Orthoclase
Fluorapatite with Orthoclase.
Fluorapatite with Orthoclase.
 

AB40M6: Group of very well defined crystals, many of them doubly terminated. They have an extraordinary, very deep, violet color, and are very transparent. On an Orthoclase matrix.
Pederneira claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais  Brazil

Specimen size: 5.2 × 3 × 3.4 cm = 2.05” × 1.18” × 1.34”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

Minor fluorescence long & short UV
Helvine with Quartz
 

AD76M6: Very sharp and well defined crystals on Albite matrix. Next to the largest crystals there are some smaller ones, clean of impurities and of an intense, slightly orange, yellow color.
Navegadora claim (Orozimbo claim), Penha do Norte, Conselheiro Pena, Vale do Rio Doce, Minas Gerais  Brazil (03/2003)

Specimen size: 4.8 × 3.9 × 3 cm = 1.89” × 1.54” × 1.18”

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

Minor fluorescence long & short UV
Helvine with Quartz. Helvine with Quartz.
Herderite with Muscovite
Herderite with Muscovite. Front
Front
Herderite with Muscovite. Rear
Rear
 

NQ69M8: Doubly terminated crystals, one of them clearly dominant, with lateral parallel growths, good luster and yellow-brown color, on a matrix of laminar crystals of Muscovite.
Afranio Mine, Linópolis, Divino das Laranjeiras, Vale do Rio Doce, Minas Gerais  Brazil (2002)

Specimen size: 4.4 × 3.6 × 2.8 cm = 1.73” × 1.42” × 1.10”

Main crystal size: 3 × 2.3 cm = 1.18” × 0.91”

Fluor-uvite with Magnesite and Svanbergite
 

AR46M8: Group of Fluor-uvite crystals with a dominant flat rhombohedron, bright and of a very deep green color, with small rhombohedral crystals of Magnesite.
The specimen has been reviewed and published in the magazine ‘Lapis’ on page 13, volume 36, number 11, November 2011
Pomba Pit, Serra das Éguas, Brumado, Bahia, Northeast Region  Brazil

Specimen size: 4.3 × 2.9 × 2.9 cm = 1.69” × 1.14” × 1.14”

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

Fluor-uvite with Magnesite and Svanbergite.
Hematite with Fluor-uvite and Magnesite
Hematite with Fluor-uvite and Magnesite. Front -1
Front -1
Hematite with Fluor-uvite and Magnesite. Front - 2
Front - 2
Hematite with Fluor-uvite and Magnesite.
 

AH59M6: Laminar very sharp crystal of Hematite that has extraordinarily defined and bright faces. It is on a matrix of rhombohedral crystals of Magnesite with a small red crystal of Fluor-uvite. Just a nice piece.
Serra das Éguas, Brumado, Bahia, Northeast Region  Brazil (1995)

Specimen size: 6.4 × 5.1 × 2.4 cm = 2.52” × 2.01” × 0.94”

Main crystal size: 2 × 1.2 cm = 0.79” × 0.47”

Smoky Quartz with Rutile and Hematite
 

AM98M5: Doubly terminated smoky Quartz crystal, very rich with golden-yellow acicular crystals of Rutile and laminar crystals of Hematite. Very esthetic.
Caí bom Mine, Novo Horizonte, Bahia, Northeast Region  Brazil (06/2006)

Specimen size: 6.9 × 2.8 × 1.7 cm = 2.72” × 1.10” × 0.67”

Smoky Quartz with Rutile and Hematite. Front
Front
Smoky Quartz with Rutile and Hematite. Side
Side
Fluorapatite with Albite
Fluorapatite with Albite. Fluorapatite with Albite.
 

AT50M4: Group of short prismatic Fluorapatite crystals, very rich on terminal bipyramid faces. Crystals are very transparent, and show slight violet color, on an Albite matrix.
Ipirá, Bahia  Brazil (2003)

Specimen size: 5.6 × 5.3 × 3.5 cm = 2.20” × 2.09” × 1.38”

Main crystal size: 1.2 × 0.9 cm = 0.47” × 0.35”

Fluorescence short UV & minor fluorescence long UV

SOUTH AMERICA (excl. Brazil)


Atacamite with Halloysite
 

AY58N2: Radial growths of acicular crystals of excellent color and luster, with bluish Halloysite and on matrix. Excellent esthetics.
Mina La Farola, Cerro Pintado, Tierra Amarilla, Copiapó, Atacama  Chile

Specimen size: 10.2 × 9.3 × 3.7 cm = 4.02” × 3.66” × 1.46”

Main crystal size: 2.7 × 2 cm = 1.06” × 0.79”

Atacamite with Halloysite.
Atacamite with Halloysite.
Tetrahedrite with Chalcopyrite and Galena
Tetrahedrite with Chalcopyrite and Galena. Front
Front
Tetrahedrite with Chalcopyrite and Galena. Side
Side
 

AX27P1: Parallel growths of Tetrahedrite crystals of very well defined faces and edges, extraordinarily bright, with Chalcopyrite and small crystals of Galena with hollow growths. Very original.
Mina Mercedes, Huallanca, Dos de Mayo, Huánuco  Peru

Specimen size: 6.8 × 4.5 × 2.8 cm = 2.68” × 1.77” × 1.10”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”

Bournonite with Pyrite
 

AL66M6: Tabular twinned crystals with groups of small, very bright, pyritohedral crystals of Pyrite.
Mina Mercedes, Huallanca, Dos de Mayo, Huánuco  Peru

Specimen size: 7.8 × 4.4 × 2 cm = 3.07” × 1.73” × 0.79”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Bournonite with Pyrite. Bournonite with Pyrite.
Pyrite
Pyrite. Front
Front
Pyrite. Side
Side
Pyrite. Bottom
Bottom
 

AH96M4: A floater Pyrite consisting of deformed crystals showing the cube and octahedron, one of them dominant. Top side of the specimen shows curious growth forms and a second phase of crystallization, with several striations.
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department  Peru

Specimen size: 6.9 × 5.5 × 3.9 cm = 2.72” × 2.17” × 1.54”

Tetrahedrite with Sphalerite and Quartz
 

AP56M4: Group of very sharp tetrahedral crystals, with an excellent brilliance and growth striations, accompanied by Sphalerite and partially covered by Quartz.
Casapalca, Chicla District, Huarochiri Province, Lima Department  Peru

Specimen size: 12 × 7.8 × 4.9 cm = 4.72” × 3.07” × 1.93”

Main crystal size: 1.7 × 1.5 cm = 0.67” × 0.59”

Tetrahedrite with Sphalerite and Quartz. Tetrahedrite with Sphalerite and Quartz.
Chalcopyrite with Sphalerite, Calcite and Galena
Chalcopyrite with Sphalerite, Calcite and Galena.
Chalcopyrite with Sphalerite, Calcite and Galena.
 

AG16M8: Group of twinned crystals extraordinarily bright, with small crystals of Sphalerite and on matrix.
Mina Casapalca, Casapalca, Huarochiri, Departamento Lima  Peru

Specimen size: 4.8 × 3.8 × 2.6 cm = 1.89” × 1.50” × 1.02”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

Proustite with manganoan Calcite and Quartz
 

AB36M4: Group of Proustite crystals with well defined and bright faces and edges and intense red color. On matrix with manganoan Calcite and Quartz.
Mina San Genaro, Castrovirreyna, Huancavelica  Peru

Specimen size: 4.8 × 3.7 × 3.6 cm = 1.89” × 1.46” × 1.42”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

Proustite with manganoan Calcite and Quartz. Proustite with manganoan Calcite and Quartz.
Enargite with Fluorite and Pyrite
Enargite with Fluorite and Pyrite. Enargite with Fluorite and Pyrite.
 

AX46M6: The crystals are very sharp and bright, which is not so common with the Peruvian samples of Enargite. They are with small crystals of Fluorite and on a metallic matrix rich with Pyrite.
Quiruvilca Mine (La Libertad Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad Department  Peru

Specimen size: 6.6 × 5.8 × 3.9 cm = 2.60” × 2.28” × 1.54”

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

Fluorite fluorescent with long UV and minor fluorescence with short UV
Rhodonite with Sphalerite and Pyrite
 

AA46P1: Very aerial and esthetic group of sharp, flat prismatic and very well defined crystals. They have an excellent luster and an extraordinary color, surely the best among the Rhodonite samples from the locality.
San Martín Mine, Chiurucu (Chiuruco), Huallanca District, Bolognesi Province, Ancash Department  Peru (11/2006)

Specimen size: 4 × 3.2 × 3 cm = 1.57” × 1.26” × 1.18”

Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”

Rhodonite with Sphalerite and Pyrite. Front
Front
Rhodonite with Sphalerite and Pyrite. Top
Top
Fluorapatite
Fluorapatite. Fluorapatite.
 

AF29M5: Very esthetic sample with a group of tabular crystals of a very attractive deep pink color and very intense luster. The crystals have a nice contrast with the Albite matrix.
La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department  Colombia (2005)

Specimen size: 3.5 × 2.9 × 1.8 cm = 1.38” × 1.14” × 0.71”

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

Fluorescent long & short UV
Beryl (variety emerald) with Calcite
 

NT70M6: Very transparent crystal that has extraordinary luster and color. In addition to all of this it has an excellent definition of faces and edges and its termination is busy because there are two sets of pyramid faces plus a very neat pinacoid. The crystal is absolutely gemmy and it is implanted on a Calcite matrix.
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department  Colombia (09/2002)

Specimen size: 3.9 × 3.1 × 3.3 cm = 1.54” × 1.22” × 1.30”

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

Beryl (variety emerald) with Calcite. Beryl (variety emerald) with Calcite.
Beryl (variety emerald) with Calcite
Beryl (variety emerald) with Calcite. Front
Front
Beryl (variety emerald) with Calcite. Top
Top
Beryl (variety emerald) with Calcite.
 

AV53M4: A very sharp Emerald crystal with a very luminous and uniform green color. We call your attention on the transparency and clarity of this crystal, implanted on a rich Calcite matrix.
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department  Colombia (06/1994)

Specimen size: 6 × 4.1 × 2.7 cm = 2.36” × 1.61” × 1.06”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

Pyrite with Siderite
 

AE36N4: Very aerial growth of octahedral crystal with diploid faces, unusual for Pyrite. The matrix of the piece is two lenticular crystals of Siderite.
Tres Cruces, Potosí  Bolivia (1999)

Specimen size: 5.3 × 2.6 × 3.1 cm = 2.09” × 1.02” × 1.22”

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

Pyrite with Siderite.
Paravauxite with Sigloite
Paravauxite with Sigloite. Paravauxite with Sigloite.
 

AB19S9: An excellent sample with thick prismatic crystals of Paravauxite, on matrix, with very well defined faces and edges, of a slightly greenish yellow color and very bright for the species. In some areas on the sample and near to the Paravauxite crystals are growths of thin prismatic crystals of the rare mineral Sigloite, smaller and orange in color.
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí Department  Bolivia

Specimen size: 6.3 × 4.2 × 1.4 cm = 2.48” × 1.65” × 0.55”

Main crystal size: 1.1 × 0.4 cm = 0.43” × 0.16”

Quartz (variety amethyst) with Calcite
 

AR17N4: Growth of very bright and deep colored small crystals, with small white crystals of Calcite on their surface and on matrix.
La Bolsa Quarry, La Bolsa area, Artigas Department  Uruguay (04/2006)

Specimen size: 7.8 × 6.3 × 7 cm = 3.07” × 2.48” × 2.76”

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

Quartz (variety amethyst) with Calcite. Front
Front
Quartz (variety amethyst) with Calcite. Rear
Rear

  Previous Page Previous Page Next Page Next Page Arriba
Back to the Index of the Reference Specimens
 
Home page - Minerals  Comments  Minerales.info  Feedback Form  Search  
Home
page
Minerals
 Comments Minerales.info Feedback
Form
 Search