Mineral Specimens - page 19
The Pedro Goy Collection

GQ66R9: A floater twinned crystal with bright and very well defined faces and edges. Typical for the locality, it is especially well preserved.
Graves Mountain, Lincoln County, Georgia  USA

Specimen size: 3.8 × 3 × 2.6 cm = 1.5” × 1.2” × 1.0”

GV96R9: A fanlike group of flat prismatic crystals. They have uniform sky blue color and good terminations.
Naica, Saucillo, Chihuahua  Mexico (±1987)

Specimen size: 14 × 7.7 × 3.6 cm = 5.5” × 3.0” × 1.4”

GR91R6: Very aerial globular growths of Mimetite, with yellow-brown crystals well distributed on a matrix of limonite coated by small bright white crystals of Calcite. The contrast with Calcite makes this sample more esthetic than usual.
Mina San Antonio, Santa Eulalia, Aquiles Serdán, Chihuahua  Mexico

Specimen size: 18.4 × 12.8 × 5.6 cm = 7.2” × 5.0” × 2.2”

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, Zacatecas  Mexico

Specimen size: 8 × 5.1 × 2.4 cm = 3.1” × 2.0” × 0.9”

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

GZ87R0: Group of crystals that combine the forms of a dominant trapezohedron with the dodecahedron. The crystals have a very deep color, green with slightly brownish shades. They are very bright and are partially coating a matrix of volcanic rock. The locality is very unusual for the species.
Cerro de la Concordia, Piedra Parada, Veracruz  Mexico

Specimen size: 8.2 × 6 × 4.9 cm = 3.2” × 2.4” × 1.9”

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

GF49R0: Globular growths of very thin deep greenish blue acicular crystals on a Limonite matrix. Very good esthetics for a Mexican classic.
Mina Ojuela, Mapimí, Municipio de Mapimí, Durango  Mexico (±1983)

Specimen size: 15 × 10.4 × 4.4 cm = 5.9” × 4.1” × 1.7”

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”

GR96Q5: Very aerial parallel growths of cubic crystals with perfectly defined faces and edges and partially skeletal. The Acanthite has an excellent luster, a characteristic of the samples from this mine.
Mina Rayas, Guanajuato, Municipio de Guanajuato  Mexico

Specimen size: 1.9 × 1.6 × 0.7 cm = 0.7” × 0.6” × 0.3”

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

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.
Sierra de Los Lamentos, Ahumada, Chihuahua  Mexico

Specimen size: 11 × 10 × 6.7 cm = 4.3” × 3.9” × 2.6”

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

GB16R9: Sharp prismatic crystal with very well defined faces and edges. It is deep green and has a very good luster.
Miners Bay, Haliburton County, Ontario  Canada (±1984)

Specimen size: 3.6 × 1.5 × 1.1 cm = 1.4” × 0.6” × 0.4”

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

Specimen size: 3.5 × 3 × 0.5 cm = 1.4” × 1.2” × 0.2”

GJ51Q5: Group of very transparent dodecahedral crystals, on matrix, that have an excellent color and luster.
Jeffrey Quarry, Asbestos, Québec  Canada (±1985)

Specimen size: 10.8 × 8.4 × 6.5 cm = 4.3” × 3.3” × 2.6”

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

GM66R9: Group of dodecahedral crystals slightly beveled by trapezohedral faces and partially coated by Clinochlore.
Val di Vizze, Bolzano, Trentino-Alto Adige  Italy (±1984)

Specimen size: 7.8 × 5.2 × 3.8 cm = 3.1” × 2.0” × 1.5”

Main crystal size: 0.7 × 0.4 cm = 0.3” × 0.2”

GQ47R9: Group of white prismatic crystals with very well defined faces and edges on a matrix of Sulfur. An Italian classic.
La Grasta Mine, Delia, Caltanissetta, Sicily  Italy

Specimen size: 11.4 × 6.6 × 5.4 cm = 4.5” × 2.6” × 2.1”

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

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, Val di Susa, Torino, Piemonte  Italy

Specimen size: 11 × 8.4 × 3.6 cm = 4.3” × 3.3” × 1.4”

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

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.
Le Rocher d'Armentier, Bourg d'Oisans, Isère  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”

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, Savoie, 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”

GT47R6: Druse growth of crystals with very well defined faces and edges, transparent, bright and on matrix.
Bigadiç, Balikesir, Marmara Region  Turkey

Specimen size: 11.2 × 9 × 6.5 cm = 4.4” × 3.5” × 2.6”

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

GM26R9: Resembling those from Brazil, Wolodarsk Phenakite is not so common. The crystal, of a good size, has very well defined faces and edges and it's transparent.
Wolodarsk-Wolynskii, Zhytomyr Oblast'  Ukraine (±1981)

Specimen size: 2.2 × 1.6 × 0.8 cm = 0.9” × 0.6” × 0.3”

GF36Q1: Very aerial group of doubly terminated crystals of good size, with parallel growths and deep color with orange-brown reflections.
Mibladen, Midelt, Khénifra  Morocco (±1980)

Specimen size: 3 × 2.2 × 2.8 cm = 1.2” × 0.9” × 1.1”

Main crystal size: 1.1 × 1 cm = 0.4” × 0.4”

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, Oujda  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”

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, Oujda  Morocco (±1988)

Specimen size: 9 × 7.4 × 4.4 cm = 3.5” × 2.9” × 1.7”

Main crystal size: 1.7 × 0.5 cm = 0.7” × 0.2”

GC17Q5: Aggregate of bright crystals, very well defined and with good color, that fill in a cavity in a matrix of metallic sulphides.
Bou Azzer area, Tazenakht, Ouarzazate  Morocco (±1980)

Specimen size: 7.5 × 6.8 × 5.4 cm = 3.0” × 2.7” × 2.1”

Main crystal size: 0.9 × 0.5 cm = 0.4” × 0.2”

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.
Puit IX, Touissit, Oujda  Morocco (±1980)

Specimen size: 3.5 × 2 × 0.7 cm = 1.4” × 0.8” × 0.3”

Main crystal size: 3.5 × 0.7 cm = 1.4” × 0.3”

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, Minas Gerais  Brazil (±1980)

Specimen size: 2.6 × 1.9 × 1.4 cm = 1.0” × 0.7” × 0.6”

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

GF64Q5: Lenticular crystals of 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 Uvite and Quartz is infrequent at this locality and even more with crystals of the quality and the size of this one.
Mina da Pombas, Serra das Éguas, Brumado, Bahia  Brazil (±1994)

Specimen size: 17.4 × 4.6 × 3.9 cm = 6.9” × 1.8” × 1.5”

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

GD48R9: A rich group of sharp clear crystals of Quartz. Some, especially one of them, neatly shows a Japan twin.
Mina Buenaventura, Pasto Bueno, Pallasca, Ancash  Peru (±1985)

Specimen size: 9 × 8.8 × 6.8 cm = 3.5” × 3.5” × 2.7”

Main crystal size: 4.6 × 1.4 cm = 1.8” × 0.6”

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, Distrito Quiruvilca, Departamento La Libertad  Peru (±1985)

Specimen size: 8.4 × 7.4 × 4.3 cm = 3.3” × 2.9” × 1.7”

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

GF86R9: Twinned crystals of considerable size for the locality. They are bright and are on a metallic matrix with pyritohedral crystals of Pyrite.
Quiruvilca, Distrito Quiruvilca, Departamento La Libertad  Peru (±1987)

Specimen size: 11 × 6.4 × 3.7 cm = 4.3” × 2.5” × 1.5”

Main crystal size: 1.1 × 0.7 cm = 0.4” × 0.3”

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.
Mina Huanzala, Huallanca, Dos de Mayo, Huánuco  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”

GP47P9: The morphology of these crystals of Hübnerite, some of them very flattened and with curious dark zoning, is very atypical. Only a few samples with this type of crystals were obtained in the early eighties. The vivid red color is extraordinary and the matrix, due the quality of the Quartz crystals and the presence of some crystals of Pyrite give the final touch to the piece.
Pasto Bueno, Pallasca, Ancash  Peru (±1982)

Specimen size: 14.4 × 3 × 2.9 cm = 5.7” × 1.2” × 1.1”

Main crystal size: 2 × 1.4 cm = 0.8” × 0.6”

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.
Mina Huanzala, Huallanca, Dos de Mayo, Huánuco  Peru (±1985)

Specimen size: 13.2 × 10 × 5.3 cm = 5.2” × 3.9” × 2.1”

Main crystal size: 4.2 × 3 cm = 1.7” × 1.2”

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

Specimen size: 14.2 × 10.2 × 4.9 cm = 5.6” × 4.0” × 1.9”

Main crystal size: 4 × 1.8 cm = 1.6” × 0.7”

GA99R6: Prismatic crystals of Cinnabar with very good terminations, some of them doubly terminated. Their color is intense and deep and they are very bright and on matrix, with Quartz and Dolomite crystals with curved faces and edges.
Chatian, Fenghua, Hunan  China (±1996)

Specimen size: 11.4 × 7.8 × 7 cm = 4.5” × 3.1” × 2.8”

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

GM47R9: Group of honey yellow dipyramidal crystals on a crystalline matrix. They are sharp, translucent and bright. Due to the year of collection, the sample is probably one of the first known for the locality.
Shaobaodin Mountains, Pingwu, Sichuan  China (±1994)

Specimen size: 6.7 × 5.3 × 3 cm = 2.6” × 2.1” × 1.2”

Main crystal size: 3.1 × 2.2 cm = 1.2” × 0.9”

GC14R9: Doubly terminated deep red crystals, one of the clearly dominant, translucent under a strong light. They are on matrix and are not repaired.
Mysore, Karnataka  India

Specimen size: 5.2 × 4 × 3.2 cm = 2.0” × 1.6” × 1.3”

Main crystal size: 2 × 1.4 cm = 0.8” × 0.6”

GC46Q5: Groups showing individual crystals with very well defined faces and edges, quite rare for Cavansite which usually is seen in spherical clusters of very small crystals.
Wagholi Quarry, Poona, Maharashtra  India (±1993)

Specimen size: 8.4 × 6.4 × 6 cm = 3.3” × 2.5” × 2.4”

Main crystal size: 1.2 × 0.2 cm = 0.5” × 0.1”

GD26R0: A sharp crystal with very well defined faces and edges, between transparent and translucent and with an excellent pinacoidal termination. It has very good luster and uniform blue color with slight greenish shades.
Dassu, Shigar Valley, Skardu, Baltistan  Pakistan (±1982)

Specimen size: 4.2 × 1.8 × 1.6 cm = 1.7” × 0.7” × 0.6”

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”

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

Specimen size: 9.5 × 6 × 2.4 cm = 3.7” × 2.4” × 0.9”

GV46P9: An esthetic miniature from a locality already historic. Its crystals have the dark tones typical of Korean samples, they have very well defined faces and edges and are very bright, with small coatings of white rhombohedral crystals of Calcite.
Tae Wha Mine, Neungam-ri, Chungju, Chungcheongbukdo  South Korea (±1985)

Specimen size: 3.2 × 2.8 × 2.4 cm = 1.3” × 1.1” × 0.9”

Main crystal size: 1.8 × 1.6 cm = 0.7” × 0.6”

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.
Rossarden Tin Mine, Rossarden, Tasmania  Australia (±1980)

Specimen size: 5.8 × 2.8 × 2.5 cm = 2.3” × 1.1” × 1.0”

Main crystal size: 3 × 2 cm = 1.2” × 0.8”