Mixed Minerals — Marin Mineral

Mixed Minerals
August 23, 2023 · 14 specimens

FM108 - Topaz sold

Ouro Preto, Minas Gerais, Brazil
Small Cabinet - 5.6 x 1.3 x 1 cm

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Tall single 'Imperial' Topaz crystal from Brazil. Complete all around,, well terminated, with beautiful rich coloration. Very minor edge wear, essentially undamaged. Ex. Paul Geffner collection. Weighs 15.82 grams.

FM109 - Tourmaline sold

Malkan Pegmatite Field, Zabaykalsky Krai, Russia
Small Cabinet - 5.6 x 1.8 x 1.4 cm

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Gemmy pink Tourmaline crystal from Russia. Good transparency with a pink body color that grades to an intense pink termination. Super color and transparency at the tip. Complete all around. Ex. Paul Geffner collection. Weighs 29.63 grams.

FM111 - Wulfenite sold

Tsumeb, Namibia
Thumbnail - 2.5 x 1.8 x 1.5 cm

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Stout, translucent orange Wulfenite crystals on matrix with Quartz crystals from Tsumeb. Great thumbnail specimen good from both sides with crystals to 1cm on edge.

FM112 - Euclase sold

Ouro Preto, Brazil
Thumbnail - 1.7 x 0.9 x 0.5 cm

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Light blue Euclase crystal from the less commonly seen locality of Ouro Preto. Complete and undamaged gem crystal.

FM113 - Proustite $600 available

Millotingo Mine (San Juan Mine), Pacococha, HuarochirÃ Province, Lima, Peru
Thumbnail - 2.0 x 1.2 x 1.1 cm

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Thick, red Proustite crystals from an obscure, now defunct silver mine in Peru. From MINDAT: 'Millotingo Mine opened in 1933, and was originally called the San Juan Mine, or San Juan de Millotingo Mine. It was closed in 1992 because of weak metal prices and local terrorist activity by Shining Path. The ore yielded 39 million ounces of silver and 90,000 ounces of gold over that time span. Mining at Millotingo exploited fractures in andesite where silver minerals, mainly sulphosalts, are concentrated in upper portions away from silicified zones'.

FM114 - Chondrodite with Clinochlore $750 available

Kokcha Valley, Badakhshan, Afghanistan
Thumbnail - 2.5 x 1.9 x 1.7 cm

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Chondrodite crystals to 1.5cm on green Clinochlore crystals. Excellent example from this fine.

FM115 - Bournonite sold

Georg Mine, Willroth, Rhineland-Palatinate, Germany
Thumbnail - 2 x 1.5 x 1.2 cm

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Cluster of shiny metallic Bournonite crystals with form and high luster typical for this mine.

FM116 - Fluorite sold

Huanggang Mine, Inner Mongolia, China
Miniature - 3.5 x 3 x 3 cm

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Two connected octahedrons of pink Fluorite. A perfect floater with no points of contact, complete all around. Ex. Stevia Thompson collection.

FM117 - Brucite $600 available

Killa Saifullah, Balochistan, Pakistan
Small Cabinet - 7.2 x 5.5 x 2.7 cm

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Uncommon bi-colored Brucite specimen. A colorless, wheel-shaped Brucite cluster is partially coated by a second generation of yellow Brucite. I bought this when they first came out and kept it in my collection because it was so unusual. I've never seen another like it.

FM118 - Spessartine on Apatite sold

Skardu, Pakistan
Thumbnail - 2.3 x 2.3 x 0.8 cm

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Tabular pink Apatite crystal with an attached Spessartine crystal. Complete all around undamaged flaoter with areas of transparency. Ex. Carl Acosta collection.

AU916 - Dioptase with Quartz sold

Sanda Mine, Pool Department, Republic of the Congo
Thumbnail - 2.5 x 2.5 x 2 cm

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Quartz crystals surrounding a bright green Dioptase crystal.

AU765 - Kidwellite sold

Coon Creek Mine, Polk Co., Arkansas, USA
Thumbnail - 2.5 x 2.5 x 1.5 cm

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Well isolated green hemisphere of Kidwellite on matrix. Larger sized than average at 8mm wide.

AU660 - Quartz 'Herkimer Diamond' $300 available

Herkimer Co., New York, USA
Miniature - 3.5 x 3 x 2.5 cm

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Glassy, transparent cluster of Quartz crystals known as 'Herkimer Diamonds' for their doubly-terminated form and bright glassy luster and transparency. A cluster of two crystals with a contact on one end, otherwise perfect and glassy all around. Much better than photos!!

AU923 - Anglesite sold

Los Lamentos, Chihuahua, Mexico
Miniature - 4.2 x 2 x 1.1 cm

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Rare crystal of Anglesite from Los Lamentos. A yellow crystal with a granular surface but internally transparent to translucent. Rarely seen crystal for a Los Lamentos collection. comes with an old Filer's minerals label.

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