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Reference Specimens
The Pedro Goy Collection

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Photos by Fabre Minerals. Under Creative Commons license

On this page we have shown the specimens that were in the Pedro Goy Collection. We didn't want to delete them from our website given their quality, so we decided to save them and publish all of them on this special page, which will act as a kind of representative overview of this classic collection.
We hope that you enjoy your visit, even if it is just to see this page!


Carles Curto Text: Carles Curto (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 = 2.0” × 1.8” × 0.8”

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 = 2.3” × 1.7” × 1.3”

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 = 4.3” × 1.8” × 1.5”

Main crystal size: 1.2 × 0.6 cm = 0.5” × 0.2”

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 = 2.7” × 2.1” × 1.7”

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 = 2.9” × 2.6” × 1.3”

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

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.
Mina Rayas, Guanajuato, Municipio de Guanajuato  Mexico (±1980)

Specimen size: 2.4 × 1.6 × 1 cm = 0.9” × 0.6” × 0.4”

Main crystal size: 1.1 × 0.6 cm = 0.4” × 0.2”

Former collection of Pedro Goy. Number 242
Acanthite.
Quartz with Clinochlore
Quartz with Clinochlore. 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.
Vallée de la Maurienne, Saint-Jean-de-Maurienne, Savoie, Auvergne-Rhône-Alpes  France (1993)

Specimen size: 16 × 10.7 × 6.2 cm = 6.3” × 4.2” × 2.4”

Main crystal size: 8.2 × 1.7 cm = 3.2” × 0.7”

Former collection of Pedro Goy. Number 422
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 = 2.1” × 1.8” × 1.1”

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 = 3.5” × 3.3” × 2.0”

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

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.
Mine des Farges, Ussel, Corrèze, Nouvelle-Aquitaine  France

Specimen size: 5.2 × 4.8 × 3.8 cm = 2.0” × 1.9” × 1.5”

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

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 = 4.0” × 3.7” × 1.1”

Main crystal size: 1.4 × 1.2 cm = 0.6” × 0.5”

Former collection of Pedro Goy. Number 396
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 = 3.0” × 1.5” × 1.5”

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

Former collection of Pedro Goy. Number 285
Clinochlore (variety kämmererite). Clinochlore (variety kämmererite).
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 = 2.6” × 2.4” × 2.5”

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

Former collection of Pedro Goy. Number 335
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 = 1.1” × 0.9” × 0.6”

Main crystal size: 2.2 × 0.7 cm = 0.9” × 0.3”

Former collection of Pedro Goy. Number 184
Azurite with Malachite.
Arsenical Vanadinite with Mottramite
Arsenical Vanadinite with Mottramite. Arsenical 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 = 6.4” × 3.7” × 2.3”

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

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, Katanga (Shaba)  Congo DR (Zaire) (±1981)

Specimen size: 9.8 × 6.6 × 5.2 cm = 3.9” × 2.6” × 2.0”

Former collection of Pedro Goy. Number 258
Malachite. Front
Front
Malachite. 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, Minas Gerais  Brazil

Specimen size: 5 × 4.8 × 3.8 cm = 2.0” × 1.9” × 1.5”

Main crystal size: 1.2 × 0.6 cm = 0.5” × 0.2”

Former collection of Pedro Goy. Number 290
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  Brazil (±1996)

Specimen size: 7.9 × 5.4  × 1.9 cm = 3.1” × 2.1” × 0.7”

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

Former collection of Pedro Goy. Number 432
Uvite with Magnesite. Uvite with Magnesite.
Quartz with Rutile
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  Brazil (±1988)

Specimen size: 8.8 × 4.6 × 2.7 cm = 3.5” × 1.8” × 1.1”

Former collection of Pedro Goy. Number 398
Columbite-(Fe)

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  Brazil

Specimen size: 7 × 4.2 × 3.9 cm = 2.8” × 1.7” × 1.5”

Former collection of Pedro Goy. Number 4
Columbite-(Fe). Front
Front
Columbite-(Fe). Rear
Rear
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 = 6.1” × 3.9” × 2.6”

Main crystal size: 3.5 × 2.5 cm = 1.4” × 1.0”

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, Gilgit-Baltistan  Pakistan (±1989)

Specimen size: 6.7 × 6.3 × 4.2 cm = 2.6” × 2.5” × 1.7”

Main crystal size: 5.7 × 4.6 cm = 2.2” × 1.8”

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


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