Mixed Minerals — Marin Mineral

Mixed Minerals
August 13, 2023 · 10 specimens

AU869 - Mimetite var. Campylite on Quartz sold

Dry Gill Mine, Caldbeck Fells, Cumbria, England
Miniature - 3.5 x 2.5 x 2.2 cm

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Four crystals of Mimetite var. Campylite on a terminated Quartz crystal. The Campylite reach 1cm in size and have a deep orange color. Uncommmon to find these on Quartz crystals making a superb thumbnail!

AU870 - Spinel sold

Mahenge, Morogoro, Tanzania
Miniature - 4 x 4 x 3.5 cm

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Large 3cm pink Spinel crystal on matrix from Mahenge. The crystal is translucent and mostly complete with just a couple small chips. Larger and more aesthetic than most. Displays very well from many angles.

AU871 - Zincolivenite $2,500 available

Milpillas Mine, Cuitaca, Sonora, Mexico
Miniature - 5 x 4 x 3 cm

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Deep green fan-shaped crystal groups of Zincolivenite from a recent find at the Milpillas Mine. There were a few styles found, one of which were toothy clusters like these, reminiscent of Tsumeb. There is also an unidentified light green mineral present.

AU657 - Prehnite sold

Merelani Hills, Arusha, Tanzania
Small Cabinet - 5.5 x 4 x 3.5 cm

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Extraordinary specimen of crystallized Prehnite from the Merelani Tanzanite mines. Two interconnected spherical clusters of larege translucent to transparent yellow crystals. Complete all around floater and one of the better examples I've seen from the locality.

AU659 - Quartz with inclusions sold

Diamantina, Minas Gerais, Brazil
Miniature - 4.5 x 2 x 2 cm

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Transparent single Quartz crystals with inclusions of what are possibly Laumantite. Ex. Cal Graeber Quartz collection number Q-280.

AU872 - Mimetite sold

San Pedro Corralitos, Chihuahua, Mexico
Miniature - 4 x 2.8 x 2 cm

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Botryoidal, satiny yellow Mimetite forming a beautiful cluster. This is old material rarely seen now in this quality. It's solid Mimetite without matrix in excellent condition.

AU873 - Rose Quartz on Feldspar sold

Sapucaia Mine, Minas Gerais, Brazil
Miniature - 4.5 x 4 x 3 cm

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Glassy, lustrous Rose Quartz crystal on Feldspar. The crystal is 3cm tall, well formed (exceptionally crystallized for Rose Quartz) and transparent. The Feldspar is etched and creates an attractive, contrasting matrix. An old specimen from Frank Melanson about 25 years ago.

AU680 - Tremolite $350 available

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.0 x 1.5 x 0.7 cm

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Terminated single Tremolite crystal with bright, vivid green coloration. Transparent, complete all around, with a flat, glassy termination. Most are mere shards or fragments and complete terminated crystals such as this are are much less common. Like a number of other mineral species from Merelani, these Tremolites are considered the world's best of species.

AU681 - Tremolite $350 available

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.5 x 1.5 x 1 cm

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AU875 - Atacamite sold

Mount Gunson Copper mines, Pernatty Lagoon, South Australia, Australia
Small Cabinet - 5.5 x 4.2 x 3.5 cm

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Free standing crystals of deep green Atacamite on matrix. Most Atacamite found at this locality are globular, rounded masses and free standing crystals such as this are much less common to find. Crystals reach 5mm in size and fill various vugs.

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