Marin Mineral
Mixed Minerals
September 24, 2020  ·  16 specimens

CT550 - Fluorite on Quartz  sold

Nasik, Maharashtra State, India
Cabinet - 11.5 x 10 x 4 cm



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Fluorite on Quartz Fluorite on Quartz Fluorite on Quartz Fluorite on Quartz

Very similar in size and appearance to a fried egg, this specimen features a flat matrix covered by caorse drusy Quartz crystals with a round yellow Fluorite that is 4cm wide. The Fluorite is translucent and undamaged.


CT552 - Rhodochrsoite  sold

Emma Mine, Butte, Silver Bow Co., Montana, USA
Cabinet - 11.5 x 10 x 3 cm



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Rhodochrsoite Rhodochrsoite Rhodochrsoite Rhodochrsoite Rhodochrsoite

Historic Rhodo specimen from the Emma Mine with a mixture of both light and medium pink colored crystals. Crystals reach 2.5cm in size and are undamaged. No matrix, specimen is solid Rhodochrosite with tiny pyrite crystals on the surface. Old material from the Chuck Trantham collection purchased by Chuck at the 1995 Tucson show.


CT579 - Smithsonite after Dolomite  sold

Rush Creek Mining District, Marion Co., Arkansas, USA
Thumbnail - 2.3 x 2.2 x 1.4 cm



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Smithsonite after Dolomite Smithsonite after Dolomite Smithsonite after Dolomite Smithsonite after Dolomite

Bright yellow crystals of Smithsonite replacing Dolomite, with the curving form of the former Dolomite crystals clearly evident. The yellow color is caused by inclusions of Greenockite. Beautiful specimen! Ex. Chuck Trantham collection.


CT578 - Chalcedony epimorph after Ankerite  sold

Bill Nix's Mohave Blue claim, California, USA
Thumbnail - 2.5 x 2 x 2 cm



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Chalcedony epimorph after Ankerite Chalcedony epimorph after Ankerite Chalcedony epimorph after Ankerite Chalcedony epimorph after Ankerite

Fine quality translucent 'Mojave Blue' Chalcedony with attached crystals of Ankerite that have been coated by blue Chalcedony. Old material from the Chuck Trantham collection.


CT517 - Turquoise after Apatite  sold

Baviacora Mine, Sonora, Mexico
Thumbnail - 1.7 x 1 x 0.8 cm



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Turquoise after Apatite Turquoise after Apatite Turquoise after Apatite Turquoise after Apatite

Crystal of Apatite that has been pseudomorphed to light blue Turquoise. Ex. Chuck Trantham collection.


CT216 - Dioptase on Calcite  sold

Tsumeb, Namibia
Miniature - 3.7 x 3 x 2 cm



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Dioptase on Calcite Dioptase on Calcite Dioptase on Calcite Dioptase on Calcite

Mound-shaped mass of white Calcite crystals sprinkled with bright emerald green Dioptase crystals to 8mm. Good crystals all around and only minor damage to a couple crystals. Ex. Chuck Trantham collection.


CT146 - Rhodochrosite  sold

Uchuchacua Mine, Oyon Prov., Peru
Miniature - 4.8 x 4 x 3 cm



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Rhodochrosite Rhodochrosite Rhodochrosite

Large vug lined with sparkling red Rhodochrosite crystals and small colorless Fluorite crystals. Ex. Chuck Trantham collection. Comes with an old New Mexico Tech Mineralogical Museum label.


CT558 - Pyrrhotite  sold

Santa Eulalia, Chihuahua, Mexico
Thumbnail - 2.7 x 2.7 x 2.3 cm



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Pyrrhotite Pyrrhotite Pyrrhotite Pyrrhotite Pyrrhotite Pyrrhotite

Brassy metallic Pyrrhotite crystals from old finds in Mexico. Well crystallized all around (a floater) with a slightly reddish patina. Ex. Chuck Trantham collection. Nice thumbnail of Mexican Pyrrhotite!


CT424 - Amazonite  sold

Florissant, Teller Co., Colorado, USA
Small Cabinet - 7 x 4 x 2 cm



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Amazonite Amazonite Amazonite Amazonite

Deep blue/green Amazonite crystals with white Albite. Althought he crystals are flat lying, they are undamaged with great color. Ex. Chuck Trantham collection.


CT526 - Chlorite in Quartz  sold

Green Monster Mine, Prince of Wales Island, Alsaka, USA
Thumbnail - 2.4 x 1 x 1 cm



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Chlorite in Quartz Chlorite in Quartz Chlorite in Quartz

Two double-terminated Quartz crystals with inclusions of green Chlorite, connected by a third Quartz in the back. Really cute thumbnail. Ex. Chuck Trantham collection, acquired by Chuck in 1973.


CT196 - Legrandite  sold

Mina Oujela, Mapimi, Durango, Mexico
Thumbnail - 3 x 2 x 2 cm



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Legrandite Legrandite Legrandite

Starburst formation of golden Legrandite crystals. Ex. Chuck Trantham collection. Acquired from Al McGuinness in 1988.


CT520 - Augite  sold

Heard Island, South Indian Ocean
Thumbnail - 1 x 1 x 0.5 cm



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Augite Augite Augite Augite

Single, well formed Augite crystal, complete all around and undamaged, a flaoter. What a neat locality! Ex. Chuck Trantham collection.


CT107 - Wulfenite  sold

Red Cloud Mine, La Paz County, Arizona, USA
Miniature - 3.5 x 3.2 x 3 cm



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Wulfenite Wulfenite Wulfenite

Superb single Wulfenite crystal well protected in a vug. The Wulfenite has a great red/orange color and is translucent to transparent, 1.3cm in size. Ex. Chuck Trantham collection.


CT469 - Apophyllite  sold

Millington Quarry, Basking Ridge, New Jersey, USA
Thumbnail - 3 x 3 x 1.5 cm



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Apophyllite Apophyllite Apophyllite

Fine quality, glassy Apophyllite crystals from the classic USA locality that is now closed. Sharp, well formed crystals with high luster. Contacted on the backside but displays great from the front. Ex. Chuck Trantham collection.


M650 - Diaspore  sold

Milas, Mugla Prov., Turkey
Thumbnail - 3 x 2.6 x 0.7 cm



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Diaspore Diaspore Diaspore Diaspore

V-twin crystal of color change Diaspore. From new finds in the mountains near Milas, these new Diaspore crystals are spectacular in color and form. Glassy, flat termination faces on one 'arm' (chipping on the other termination), and transparent inside. Medium purple color in natural sunlight. This is a good sized crystal for the find!


D601 - Tourmaline  sold

Chia Mine, Minas Gerais, Brazil
Miniature - 3.7 x 1 x 0.6 cm



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Tourmaline Tourmaline Tourmaline

Transparent red single Tourmaline. Highly lustrous and transparent with a perfect, complex termination. Undamaged, with a shallow indentation from another crystal on one side, otherwise perfect. Weighs 5.4 grams.


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