Reference Specimens
The Pedro Goy Collection

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Photos by Fabre Minerals. Under Creative Commons license

This page provides a selection of the specimens that were in the Pedro Goy 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 (formerly curator of the Geology Museum, Barcelona) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White

 


Pedro Goy Benítez (1917-2000) was born in the town of Esparraguera, in the province of Barcelona, but lived most of his life in Oviedo and Madrid.

Pedro was a ‘hidden’ collector, and very few people in the Spanish world of minerals knew that he had assembled a good collection through his hard work and excellent aesthetic taste.

He was self taught, a close friend to those that knew him, pleasant, and well educated, so his presence at mineral shows in the 80s and 90s was absolutely synonymous with a good conversation. He was always hunting for the most attractive specimen at the show, then matching his wish for beauty with the need for scientific knowledge, which he demanded of the dealers or he found among the many mineral text books that he owned.

Pedro Goy


He was interested in botany, mycology, and medicine, just to give you an idea of the range of his interests he wrote material that developed into what he called
"An almost encyclopedic glossary of the physical cosmos and nuclear physics".

We hope that through this page we can share the Pedro Goy Collection with other mineral collectors. It is a collection that represents, in a very special way, the dawn of modern Spanish mineralogy as well as the type and form of collection that was typical in Madrid and the regions it influenced during the 1970s to 1990s.

 

Cinnabar
Cerussite
Azurite

 

The Pedro Goy Collection


Pyromorphite
Pyromorphite. Pyromorphite.
 

GF37Q0: Botryoidal aggregate of crystals of extraordinarily curved faces, of vivid reddish orange color and a very intense luster. An American classic now.
Bunker Hill Mine, Bunker Hill properties, Kellogg, Coeur d'Alene District, Shoshone County, Idaho  USA (±1982)

Specimen size: 5.1 × 4.6 × 2.1 cm = 2.01” × 1.81” × 0.83”

Minor fluorescence long & short UV

Former collection of Pedro Goy. Number 91
Smithsonite
 

GM69Q0: Botrioydal growths of intense greenish blue color and excellent luster, on matrix. An American classic.
Kelly Mine, Magdalena, Magdalena District, Socorro County, New Mexico  USA (±1982)

Specimen size: 5.8 × 4.2 × 3.4 cm = 2.28” × 1.65” × 1.34”

Very fluorescent long & short UV

Former collection of Pedro Goy. Number 130
Smithsonite.
Copper with Cuprite
Copper with Cuprite. Front
Front
Copper with Cuprite. Rear
Rear
 

GF87Q0: Very aerial arborescent growth of deformed but very well defined faces and edges, with Cuprite and on matrix.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA

Specimen size: 10.9 × 4.6 × 3.7 cm = 4.29” × 1.81” × 1.46”

Main crystal size: 1.2 × 0.6 cm = 0.47” × 0.24”

Former collection of Pedro Goy. Number 161
Chrysocolla with Quartz
 

GA26R0: Bluish globular growths of Chrysocolla covered by microcrystalline aggregates of transparent Quartz that fill a cavity in the matrix. It is from a classic North American locality.
Bagdad Mine, Bagdad, Eureka District, Yavapai County, Arizona  USA (±1982)

Specimen size: 6.8 × 5.4 × 4.2 cm = 2.68” × 2.13” × 1.65”

Former collection of Pedro Goy. Number 5
Chrysocolla with Quartz. Chrysocolla with Quartz.
Smithsonite
Smithsonite. Smithsonite.
 

GG14Q5: White spheroidal aggregates with silky luster on Limonite matrix. We note the locality, very uncommon and unknown by most collectors.
Silver Hill Mine group, Waterman District, Waterman Mountains, Pima County, Arizona  USA

Specimen size: 7.4 × 6.5 × 3.4 cm = 2.91” × 2.56” × 1.34”

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

Former collection of Pedro Goy. Number 195
Acanthite
 

GQ16Q5: Very aerial group of distorted crystals but they have perfectly defined faces and edges. They have an excellent luster, a characteristic of the samples from this mine.
San Juan de Rayas Mine, Guanajuato, Municipio Guanajuato  Mexico (±1980)

Specimen size: 2.4 × 1.6 × 1 cm = 0.94” × 0.63” × 0.39”

Main crystal size: 1.1 × 0.6 cm = 0.43” × 0.24”

Former collection of Pedro Goy. Number 242
Acanthite.
Tennantite with Chalcopyrite
Tennantite with Chalcopyrite. Tennantite with Chalcopyrite.
 

GB67R0: Crystals of Tennantite, of very good quality, implanted on a group of white Quartz crystals. The Tennantite crystals have good size, are bright and rich in faces. Predominating are the faces of the tetrahedron, some of which have hollow growths occupied by small twinned crystals of Chalcopyrite.
Concepción del Oro, Municipio Concepción del Oro, Zacatecas  Mexico

Specimen size: 8 × 5.1 × 2.4 cm = 3.15” × 2.01” × 0.94”

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

Former collection of Pedro Goy. Number 137
Wulfenite with Vanadinite (variety Endlichite) and Calcite
 

GG11Q0: Thick tabular crystals of deep orange Wulfenite with very well marked forms of a flattened dipyramid, which is very uncommon on the samples from Los Lamentos. On matrix, with Calcite and small crystals of Vanadinite (Endlichite). An excellent Mexican classic.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 11 × 10 × 6.7 cm = 4.33” × 3.94” × 2.64”

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

Former collection of Pedro Goy. Number 407
Wulfenite with Vanadinite (variety Endlichite) and Calcite. Wulfenite with Vanadinite (variety Endlichite) and Calcite.
Molybdenite
Molybdenite.
 

GR64R6: Polycrystalline growths of laminar crystals of Molybdenite with a small group of rhombohedral crystals of Calcite.
Moly Hill Mine, La Motte, Abitibi RCM, Abitibi-Témiscamingue, Québec  Canada (±1982)

Specimen size: 3.5 × 3 × 0.5 cm = 1.38” × 1.18” × 0.20”

Former collection of Pedro Goy. Number 191
Silver
 

GE7Q5: Dendritic growths of thin elongated crystals that have a very good luster and color. On matrix, with Calcite.
El Bonanza Mine, Port Radium District, Great Bear Lake, Mackenzie District, Northwest Territories  Canada (±1981)

Specimen size: 5.4 × 4.6 × 2.7 cm = 2.13” × 1.81” × 1.06”

Calcite fluorescent long & short UV

Former collection of Pedro Goy. Number 175
Silver. Silver.
Cinnabar with Mercury
Cinnabar with Mercury.
Cinnabar with Mercury. Cinnabar with Mercury.
 

GE69P9: Very well defined crystals of Cinnabar that have excellent color and luster. They are on a matrix of quartzite with fine granular Cinnabar and with small tabular crystals of Baryte and small drops of interstitial native Mercury. An excellent Spanish classic.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 9 × 8.3 × 5.1 cm = 3.54” × 3.27” × 2.01”

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

Former collection of Pedro Goy. Number 57
Pyromorphite
 

GX68Q0: Group of well developed prismatic crystals with hollow terminations and deep green color (Les Farges green) and on matrix. A good French classic.
Les Farges Mine (Des Farges Mine), Ussel, Corrèze, Nouvelle-Aquitaine  France

Specimen size: 5.2 × 4.8 × 3.8 cm = 2.05” × 1.89” × 1.50”

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

Former collection of Pedro Goy. Number 214
Pyromorphite. Pyromorphite.
Axinite-(Fe) with Epidote and Quartz
Axinite-(Fe) with Epidote and Quartz. Axinite-(Fe) with Epidote and Quartz.
 

GK88R0: Flattened sharp crystals of Axinite-(Fe) that are transparent, bright and have excellent color. They are on matrix, with Quartz and thin prismatic crystals of Epidote. A French classic. Before the Russian Axinites appeared, the French samples were considered the best.
Rochers de l'Armentier, Le Bourg d'Oisans, Grenoble, Isère, Auvergne-Rhône-Alpes  France (±1989)

Specimen size: 10.2 × 9.5 × 2.8 cm = 4.02” × 3.74” × 1.10”

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

Former collection of Pedro Goy. Number 396
Quartz with Clinochlore
 

GR51Q0: Group of crystals, a lot of them doubly terminated, with Clinochlore phantoms and inclusions of the same mineral. We specially note the perfection of the piece and the locality which is not so well known as other alpine localities.
Maurienne Valley, Saint-Jean-de-Maurienne, Savoie, Auvergne-Rhône-Alpes  France (1993)

Specimen size: 16 × 10.7 × 6.2 cm = 6.30” × 4.21” × 2.44”

Main crystal size: 8.2 × 1.7 cm = 3.23” × 0.67”

Former collection of Pedro Goy. Number 422
Quartz with Clinochlore. Quartz with Clinochlore.
Perovskite with Magnetite
Perovskite with Magnetite. Perovskite with Magnetite.
 

GC47R6: Very well defined pseudo-cubical crystals of Perovskite, dark Brown and very bright for the species. On a Chlorite matrix, with dodecahedral crystals of Magnetite.
Rocca Sella, Almese, Susa Valley, Metropolitan City of Turin Province, Piedmont (Piemonte)  Italy

Specimen size: 11 × 8.4 × 3.6 cm = 4.33” × 3.31” × 1.42”

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

Former collection of Pedro Goy. Number 203
Metastibnite with Stibnite
 

GR89AD4: Rough Metastibnite coatings with strong color changes, on very elongated Stibnite crystals. An Italian classic currently difficult to find, especially in such large crystals.
Manciano, Grosseto Province, Tuscany  Italy

Specimen size: 18.1 × 1.8 × 1.4 cm = 7.13” × 0.71” × 0.55”

Main crystal size: 14.5 × 1 cm = 5.71” × 0.39”

Former collection of Pedro Goy
Metastibnite with Stibnite. Front
Front
Metastibnite with Stibnite. Rear
Rear
Clinochlore (variety kämmererite)
Clinochlore (variety kämmererite). Clinochlore (variety kämmererite).
 

GK7P9: Very well defined and deep-colored crystals on a matrix coated by a layer of very small crystals of the same Kämmererite.
Kop Krom Mine, Kop Daglari, Erzurum Province, Eastern Anatolia Region  Turkey (±1982)

Specimen size: 7.7 × 3.8 × 3.8 cm = 3.03” × 1.50” × 1.50”

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

Former collection of Pedro Goy. Number 285
Azurite with Malachite
 

GX13P9: Excellent miniature. A group of crystals of very deep color and intense luster and partially pseudomorphed by Malachite.
Shaft IX (Puit IX), Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1980)

Specimen size: 2.8 × 2.4 × 1.5 cm = 1.10” × 0.94” × 0.59”

Main crystal size: 2.2 × 0.7 cm = 0.87” × 0.28”

Former collection of Pedro Goy. Number 184
Azurite with Malachite.
Azurite
Azurite. Front
Front
Azurite. Rear
Rear
 

GM86R6: A group of four elongated crystals with very well defined faces and edges, and with excellent and very deep color, showing intense blue reflections and very bright. A miniature of special quality.
Shaft IX (Puit IX), Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1980)

Specimen size: 3.5 × 2 × 0.7 cm = 1.38” × 0.79” × 0.28”

Main crystal size: 3.5 × 0.7 cm = 1.38” × 0.28”

Former collection of Pedro Goy. Number 183
Malachite after Azurite
 

GE90W3: Group of unusually sharp prismatic crystals on limonite matrix. They are doubly terminated and one of them is clearly dominant. The sample, of great quality due to the perfection and sharpness of the crystalline forms, has a small geometric contact on one of the terminations of the main crystal, a contact that we clearly show in the close-up photography.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1981)

Specimen size: 5.9 × 3.6 × 4.2 cm = 2.32” × 1.42” × 1.65”

Main crystal size: 5.9 × 1.8 cm = 2.32” × 0.71”

Former collection of Pedro Goy. Number 268
Malachite after Azurite. Malachite after Azurite.
Cerussite with Galena
Cerussite with Galena. Cerussite with Galena.
 

GJ86P9: Very well defined crystal, extraordinary for its transparency, luster and color. It is on a rough Galena matrix.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1984)

Specimen size: 6.7 × 6.2 × 6.4 cm = 2.64” × 2.44” × 2.52”

Main crystal size: 1.4 × 0.6 cm = 0.55” × 0.24”

Former collection of Pedro Goy. Number 335
Aragonite (variety tarnowitzite) with Smithsonite
 

GP67R0: Group of cream-colored twinned crystals of this lead-bearing variety of Aragonite (6-7 % PbO in the samples from Morocco). They have very well defined faces and edges and are on a matrix with small crystals of Smithsonite. Such samples, found around 1988, are actually very scarce.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1988)

Specimen size: 9 × 7.4 × 4.4 cm = 3.54” × 2.91” × 1.73”

Main crystal size: 1.7 × 0.5 cm = 0.67” × 0.20”

Very fluorescent long & short UV

Former collection of Pedro Goy. Number 384
Aragonite (variety tarnowitzite) with Smithsonite. Aragonite (variety tarnowitzite) with Smithsonite.
Vanadinite (variety arsenic-bearing vanadinite) with Mottramite
Vanadinite (variety arsenic-bearing vanadinite) with Mottramite. Vanadinite (variety arsenic-bearing vanadinite) with Mottramite.
 

GM29R6: A classic for Touissit. Groups of doubly terminated crystals with slightly curved faces and edges, typical brown color and very bright. On matrix, with small black crystals of Mottramite coating the vugs.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1984)

Specimen size: 16.2 × 9.3 × 5.8 cm = 6.38” × 3.66” × 2.28”

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

Former collection of Pedro Goy. Number 333
Malachite
 

GH86Q5: Very aerial and esthetic botryoidal growth with very deep, vivid and uniform color.
L'Etoile du Congo Mine (Star of the Congo Mine), Lubumbashi (Elizabethville), Katanga Copper Crescent, Haut-Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (±1981)

Specimen size: 9.8 × 6.6 × 5.2 cm = 3.86” × 2.60” × 2.05”

Former collection of Pedro Goy. Number 258
Malachite. Front
Front
Malachite. Top
Top
Brazilianite
Brazilianite. Front
Front
Brazilianite. Rear
Rear
Brazilianite.
 

GA37AD4: Aggregate on matrix of sharp, translucent and very bright crystals. They have a very uniform greenish yellow color and the typical shape of the first crystals found at Linópolis.
Linópolis, Divino das Laranjeiras, Vale do Rio Doce, Minas Gerais  Brazil

Specimen size: 5.2 × 4 × 4.4 cm = 2.05” × 1.57” × 1.73”

Main crystal size: 2.1 × 1.7 cm = 0.83” × 0.67”

Former collection of Pedro Goy
Topaz
 

GP98W3: Gemmy blue Topaz, with a very rich color, very sharp but with several "scars" (contacts, rehealing...) that are typical of pegmatite minerals.

Virgem da Lapa, Jequitinhonha, Minas Gerais  Brazil (±1980)

Specimen size: 4.9 × 4.9 × 3.7 cm = 1.93” × 1.93” × 1.46”

Former collection of Pedro Goy. Number 281
Topaz. Front
Front
Topaz. Top
Top
Siderite with Pyrrhotite
Siderite with Pyrrhotite.
 

GQ11R6: The sample is very representative of the Siderite from the Morro Velho gold mine, samples that were relatively abundant a few decades ago and very scarce today. The lenticular crystals, very sharp, have an excellent color and intense luster.
Morro Velho Mine, Nova Lima, Belo Horizonte, Minas Gerais  Brazil

Specimen size: 5 × 4.8 × 3.8 cm = 1.97” × 1.89” × 1.50”

Main crystal size: 1.2 × 0.6 cm = 0.47” × 0.24”

Former collection of Pedro Goy. Number 290
Fluor-uvite with Magnesite
 

GY7P9: Lenticular crystals of very well defined faces and edges. They have an unusual deep red color with high transparency and are on a matrix coated by rhombohedral crystals of Magnesite.
Pomba Pit, Serra das Éguas, Brumado, Bahia, Northeast Region  Brazil (±1996)

Specimen size: 7.9 × 5.4  × 1.9 cm = 3.11” × 2.13” × 0.75”

Main crystal size: 1.2 × 0.8 cm = 0.47” × 0.31”

Former collection of Pedro Goy. Number 432
Fluor-uvite with Magnesite. Fluor-uvite with Magnesite.
Quartz with Fluor-uvite and Magnesite
Quartz with Fluor-uvite and Magnesite.
Quartz with Fluor-uvite and Magnesite. Quartz with Fluor-uvite and Magnesite.
 

GF64Q5: Lenticular crystals of Fluor-uvite formed by a very flattened rhombohedron and a very short prism. They have intense green color and are very transparent, with small rhombohedra of Magnesite and on a very transparent crystal of Quartz. The association of Fluor-uvite and Quartz is infrequent at this locality and even more with crystals of the quality and the size of this one.
Pomba Pit, Serra das Éguas, Brumado, Bahia, Northeast Region  Brazil (±1994)

Specimen size: 17.4 × 4.6 × 3.9 cm = 6.85” × 1.81” × 1.54”

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

Uvite minor fluorescence short UV

Former collection of Pedro Goy. Number 423
Quartz with Rutile
 

GV96V9: Very sharp acicular crystals of Rutile that are really bright and have a golden yellow color. They are included in a very bright partially doubly terminated crystal of smoky Quartz.
Novo Horizonte, Bahia, Northeast Region  Brazil (±1988)

Specimen size: 8.8 × 4.6 × 2.7 cm = 3.46” × 1.81” × 1.06”

Former collection of Pedro Goy. Number 398
Quartz with Rutile.
Columbite-(Fe)
Columbite-(Fe). Front
Front
Columbite-(Fe). Rear
Rear
 

GM67P9: Extraordinary group of crystals in parallel growths, rich in faces and having very well defined forms. The sample has been well analyzed and we’ll send a copy of the analysis to the buyer.
Itambé, Bahia, Northeast Region  Brazil

Specimen size: 7 × 4.2 × 3.9 cm = 2.76” × 1.65” × 1.54”

Former collection of Pedro Goy. Number 4
Scheelite on Quartz
 

GB26Q1: An excellent miniature from a not well known locality for Scheelite with a parallel growth of crystals of very deep orange color and partially included in a translucent crystal of Quartz.
Morro Velho Mine, Nova Lima, Belo Horizonte, Minas Gerais  Brazil (±1980)

Specimen size: 2.6 × 1.9 × 1.4 cm = 1.02” × 0.75” × 0.55”

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

Fluorescence short UV & minor fluorescence long UV

Former collection of Pedro Goy. Number 204
Scheelite on Quartz. Front
Front
Scheelite on Quartz. Rear
Rear
Hübnerite with Quartz
Hübnerite with Quartz. Front
Front
Hübnerite with Quartz. Rear
Rear
Hübnerite with Quartz.
 

GB27W3: Group of Hübnerite crystals that are elongated and with perfect terminations. They have a dark red color, with intense vivid red reflections under a strong light, and are with a group of thin crystals of Quartz on the back. A Peruvian classic.
Huayllapon Mine (Huallapon Mine), Pasto Bueno, Pampas District, Pallasca Province, Ancash Department  Peru (±1985)

Specimen size: 8 × 3.1 × 2.4 cm = 3.15” × 1.22” × 0.94”

Former collection of Pedro Goy. Number 133
Orpiment
 

GH61T2: Classical aggregate of Orpiment from Quiruvilca, with well developed crystals that have polycrystalline terminations. They are translucent and a very vivid orange color. On matrix, with minor Pyrite.
Quiruvilca Mine (La Libertad Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad Department  Peru (±1985)

Specimen size: 8.4 × 7.4 × 4.3 cm = 3.31” × 2.91” × 1.69”

Main crystal size: 2.1 × 2 cm = 0.83” × 0.79”

Former collection of Pedro Goy
Orpiment.
Orpiment. Orpiment.
Octahedral Pyrite
Octahedral Pyrite. Octahedral Pyrite.
 

GB86Q1: Group of octahedral crystals with very bright and very well defined faces and edges, rich in accessory faces and polycrystalline growths on some of the octahedral faces.
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department  Peru (±1985)

Specimen size: 13.2 × 10 × 5.3 cm = 5.20” × 3.94” × 2.09”

Main crystal size: 4.2 × 3 cm = 1.65” × 1.18”

Former collection of Pedro Goy. Number 180
Tetrahedrite with Quartz
 

GP96P9: Good sized and very well defined crystals partially coated by microcrystals of Quartz on matrix.
San Cristobal Mine, San Cristobal District, Yauli Province, Junín Department  Peru (±1983)

Specimen size: 14.2 × 10.2 × 4.9 cm = 5.59” × 4.02” × 1.93”

Main crystal size: 4 × 1.8 cm = 1.57” × 0.71”

Former collection of Pedro Goy. Number 297
Tetrahedrite with Quartz. Tetrahedrite with Quartz.
Fluorite with Chalcopyrite and Tetrahedrite
Fluorite with Chalcopyrite and Tetrahedrite. Fluorite with Chalcopyrite and Tetrahedrite.
 

GJ56R9: Complex crystals of Fluorite, very rich in faces with predominant forms of the cube, octahedron and dodecahedron. They are extraordinarily transparent and bright with a delicate clear green color. They are on matrix, with Chalcopyrite, Pyrite, Tetrahedrite, Sphalerite and small white lenticular crystals of Calcite.
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department  Peru (1986)

Specimen size: 15.4 × 9.8 × 6.5 cm = 6.06” × 3.86” × 2.56”

Main crystal size: 3.5 × 2.5 cm = 1.38” × 0.98”

Former collection of Pedro Goy. Number 696
Beryl (variety aquamarine) with Muscovite and Quartz
 

GB49R6: Doubly terminated crystal of Aquamarine with very well defined faces and edges, good color, excellent luster, partially coated by Muscovite, and doubly terminated crystals of Quartz.
Gilgit District, Gilgit-Baltistan (Northern Areas)  Pakistan (±1989)

Specimen size: 6.7 × 6.3 × 4.2 cm = 2.64” × 2.48” × 1.65”

Main crystal size: 5.7 × 4.6 cm = 2.24” × 1.81”

Former collection of Pedro Goy. Number 397
Beryl (variety aquamarine) with Muscovite and Quartz. Front
Front
Beryl (variety aquamarine) with Muscovite and Quartz. Rear
Rear
Spodumene
Spodumene. Front
Front
Spodumene. Top
Top
 

GA16Q1: Floater and complete crystal of excellent color, greenish yellow, with deep indentations produced by the disappearance of another mineral.
Laghman Province  Afghanistan (±1990)

Specimen size: 9.5 × 6 × 2.4 cm = 3.74” × 2.36” × 0.94”

Fluorescent long & short UV

Former collection of Pedro Goy. Number 401
Cassiterite
 

GB67P9: One of the best samples that we can remember from the locality due to its crystals which are very much larger than usual. Faces and edges are very well defined, the twin is evident but slightly marked, and are translucent, having a very deep color.
Aberfoyle Mine (Rossarden Tin Mine), Rossarden District, Tasmania  Australia (±1980)

Specimen size: 5.8 × 2.8 × 2.5 cm = 2.28” × 1.10” × 0.98”

Main crystal size: 3 × 2 cm = 1.18” × 0.79”

Former collection of Pedro Goy. Number 122
Cassiterite.
Quartz (variety amethyst) with Quartz (variety smoky)
Quartz (variety amethyst) with Quartz (variety smoky). Front
Front
Quartz (variety amethyst) with Quartz (variety smoky). Rear
Rear
 

GF49AD4: Scepter growths of short Quartz (amethyst) crystals on translucent smoky Quartz crystals with the amethyst having a very intense violet color. The locality was famous in the past but never prolific even at its better times.
Jae IL Mine, Eonyang, Gyeongsangnam-do  South Korea

Specimen size: 6 × 3.9 × 3.2 cm = 2.36” × 1.54” × 1.26”

Main crystal size: 4.5 × 1.7 cm = 1.77” × 0.67”

Former collection of Pedro Goy


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