Mixed Minerals — Marin Mineral

Mixed Minerals
June 3, 2026 · 15 specimens

R980 - Smokey Quartz/Amethyst scepter sold

Peterson Mountain, Nevada, USA
Cabinet - 14 x 11 x 9 cm

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Large, complete Quartz scepter from Paul Geffner's claim on Peterson Mountain (sometimes referred to as Halleluja Junction). This was collected by Jon Sigerman years ago and kept in his personal collection. The crystal has a short, smokey stem that likely broke off naturally in hte pocket and later healed. It is primarily a large scepter head with both smokey and amethyst coloration and transparent gem zones. It was published in Rock and Gems magazine and the first picture is the one shown in the magazine (a Jeff Scovil photo). Complete all around and undamaged with interesting growth structures. Ex. Jon Sigerman.

R981 - Manganpyrosmaltite with Rhodonite $600 available

Broken Hill, New South Wales, Australia
Thumbnail - 2 x 1.2 x 1.2 cm

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Rare translucent pink crystals of Manganpyrosmaltite on matrix with transparent Rhodonite crystals. The ManganPyrosmaltite crystals are translucent pink hexagonal crystals to 3mm in size. The Rhodonite crystals are 7mm. A Broken Hill rarity from an old Australian collection.

R982 - Manganpyrosmaltite $350 available

Broken Hill, New South Wales, Australia
Thumbnail - 1.2 x 1.2 x 0.7 cm

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Rare translucent pink crystals of Manganpyrosmaltite in matrix. The ManganPyrosmaltite crystals are translucent pink hexagonal crystals to 5mm in size. A Broken Hill rarity from an old Australian collection.

R983 - Manganpyrosmaltite $350 available

Broken Hill, New South Wales, Australia
Thumbnail - 0.8 x 0.8 x 0.5 cm

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Cluster of translucent pink crystals of Manganpyrosmaltite. The ManganPyrosmaltite crystals are translucent pink hexagonal crystals to 4mm in size. A Broken Hill rarity from an old Australian collection.

R984 - Manganpyrosmaltite sold

Broken Hill, New South Wales, Australia
Thumbnail - 1.2 x 1.0 x 1 cm

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Rare translucent pink crystal of Manganpyrosmaltite in matrix. The ManganPyrosmaltite is a translucent pink hexagonal crystal 7mm in size. This one could have small amounts of matrix removed to better reveal the main crystal and likely other crystals present in the matrix. A Broken Hill rarity from an old Australian collection.

R985 - Tellurium sold

Emperor Mine, Tavua Gold Field, Viti Levu, Fiji
Thumbnail - 2.2 x 0.7 x 0.4 cm

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Large single hoppered crystal of Tellurium from the Emperor Mine in Fiji, source of the world's finest Tellurium crystals. This is a large example (MINDAT shows only 1 crystal larger, and not as nicely formed). Well crystallized all around.

R986 - Emerald $3,000 available

Nasarawa Egon, Nasarawa, Nigeria
Small Cabinet - 5.8 x 1.2 x 1 cm

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Terminated single Emerald crystal from recent finds in Nigeria. Highly transparent and glassy with some horizontal color banding. Complete all around with a smooth, flat termination. Weighs 14 grams.

R987 - Emerald $1,500 available

Nasarawa Egon, Nasarawa, Nigeria
Miniature - 4.1 x 1.0 x 0.8 cm

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Terminated single Emerald crystal from recent finds in Nigeria. Highly transparent and glassy with some horizontal color banding. This one also has a band of tiny black crystals (possibly Biotite) which is seen in a small percentage of these crystals. Complete all around with a smooth, flat termination. Weighs 7.2 grams.

R988 - Chlorargyrite with ? $350 available

Broken Hill, New South Wales, Australia
Miniature - 3.6 x 2.8 x 2.2 cm

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Coral-like growth of solid waxy, greenishbrown Chlorargyrite. Attached are colorless crystals of Cerussite or Smithsonite(?) and smaller orange crystals of an unidentified species. Chlorargyrite is a rare silver species that's at it's best from Broken Hill.

R989 - Calcite sold

Rodeo, Chihuahua, Mexico
Small Cabinet - 7 x 6 x 4 cm

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Large rhombohedron of clear Calcite var. 'Iceland Spar'. Beautiful equant form and clear showing double refraction. This is a specimen I bought from Frazier's Minerals (Si and Ann Frazier) in Berkeley back in the 1970s and kept in my collection ever since. Ex. Mike Keim.

R990 - Vesuvianite $120 available

Jeffrey Mine, Quebec, Canada
Thumbnail - 2 x 1.2 x 0.8 cm

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Well terminated cluster of green Vesuvianite crystals from the Jeffrey Mine. Well crystallized all around and undamaged.

R991 - Aquamarine $100 available

Erongo Mtns., Namibia
Thumbnail - 2.4 x 0.6 x 0.5 cm

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Complete, glassy single Aqua crystal with excellent color and transparency. Undamaged.

R992 - Aquamarine $150 available

Erongo Mtns., Namibia
Thumbnail - 2.4 x 1.5 x 1 cm

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Complete, glassy single Aqua crystal with excellent luster and attached Schorl at the base. Undamaged.

R993 - Malachite included Barite $95 available

Shangulowe Mine, Kambove District, Lualaba, DR Congo
Small Cabinet - 5.2 x 4 x 1.2 cm

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Malachite included Barite crystals on a matrix. The crystals reach 7mm in size. Colorful specimen!

R994 - Woodhouseite on Quartz sold

Champion Mine, Mono Co., California, USA
Miniature - 4 x 2.5 x 2 cm

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Woodhouseite crystals on Quartz crystal covered matrix. The crystals are yellow/tan in color and reach 5mm in size. The Champion Mine is the Type locality for this rare species and has produced the world's best specimens.

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