Marin Mineral
Mixed Minerals
May 17, 2021  ·  9 specimens

ST313 - Scapolite  sold

Morogoro, Tanzania
Miniature - 3.9 x 3.6 x 3.3 cm



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Scapolite Scapolite Scapolite Scapolite Scapolite

Large gem quality golden Scapolite crystal. Complete all around an undamaged except for minor edge chipping. Uncommonly good, this quality is hard to find in Tanzanian Scapolite.


ST315 - Scapolite  sold

Morogoro, Tanzania
Small Cabinet - 5.2 x 2.2 x 1.8 cm



(click on an image to enlarge)

Scapolite Scapolite Scapolite Scapolite

Large gem quality golden Scapolite crystal. Complete all around an undamaged except for minor edge chipping. Uncommonly good, this quality is hard to find in Tanzanian Scapolite.


CS105 - Silver (cubic crystals!)  sold

Bouismas Mine, Zagora Prov., Draa-Tafilalet Region, Morocco
Miniature - 4.7 x 4.5 x 2 cm



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Silver (cubic crystals!) Silver (cubic crystals!) Silver (cubic crystals!) Silver (cubic crystals!) Silver (cubic crystals!) Silver (cubic crystals!)

Cluster of Silver crystals on a Safflorite matrix that have been exposed from white Calcite. Cubic Silver crystals are uncommon and these are superbly formed, sharp cubes. Individual crystals are about 2mm in size. There is both cubic crystals and branching Silver. This is my best cubic Silver specimen.


CS106 - Silver (cubic crystals!)  sold

Bouismas Mine, Zagora Prov., Draa-Tafilalet Region, Morocco
Small Cabinet - 6 x 3 x 2 cm



(click on an image to enlarge)

Silver (cubic crystals!) Silver (cubic crystals!) Silver (cubic crystals!) Silver (cubic crystals!)

Silver crystals that have been exposed from white Calcite. Cubic Silver crystals are uncommon and these are superbly formed, sharp cubes in a cluster 8mm in size. The matrix is solid white Calcite that could easy be trimmed or etched to a smaller size if desired.


ST299 - Spinel  sold

Mogok, Myanmar
Small Cabinet - 6 x 5.5 x 2.5 cm



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Spinel Spinel Spinel Spinel

Red Spinel crystals in a white marble matrix. The crystals are well saturated red octahedrons to 1cm in size and have good transparency.


ST317 - Grossular  sold

Morogoro, Tanzania
Thumbnail - 3.1 x 1.5 x 1.2 cm



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Grossular Grossular Grossular

Rare red/orange Grossular crystal from Tanzania. An elongated crystal that shows twinning growth and areas of transparency. This was acquired from a gem dealer and was the only good crystal in a parcel of facet rough from an unnamed prospect. Unusual.


ST320 - Deerite  sold

Laytonville Quarry, Mendocino Co., California, USA
Small Cabinet - 8 x 4.5 x 2 cm



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Deerite Deerite Deerite Deerite

Long black acicular crystals of Deerite, a rare silicate mineral named after one of the authors of the popular book, 'An Introduction to the Rock Forming Minerals'. From the type locality.


ST325 - Svanbergite, Topaz, Rutile on Quartz  sold

Champion Mine, Mono Co., California, USA
Miniature - 4 x 2.5 x 2.2 cm



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Svanbergite, Topaz, Rutile on Quartz Svanbergite, Topaz, Rutile on Quartz Svanbergite, Topaz, Rutile on Quartz Svanbergite, Topaz, Rutile on Quartz Svanbergite, Topaz, Rutile on Quartz

Tan colored crystals of Svanbergite with glassy white Topaz crystals and tiny dark Rutile crystals grown atop a Quartz crystal. Svanbergite is an uncommon Strontium Aluminum Phosphate Sulfate Hydroxide mineral.


ST310 - Schortman's Hardness Test Kit  sold

Massachusetts, USA
Cabinet - 15 x 12 x 3 cm



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Schortman's Hardness Test Kit Schortman's Hardness Test Kit Schortman's Hardness Test Kit

Classic Schortmann's test kit including 9 minerals (Talc through Corundum) and a streak plate in the origianl box.


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