Thumbnails — Marin Mineral

Thumbnails
July 15, 2023 · 18 specimens

AU539 - Danburite sold

Maharitra, Sahatany Valley, Ibity, Vakinankaratra, Madagascar
Thumbnail - 2.5 x 0.7 x 0.6 cm

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Single golden Danburite crystal from Madagascar. Complete all around and undamaged with glassy luster and areas of complete transparency. Uncommon crystal!

AU776 - Davidite sold

Australia
Thumbnail - 1.2 x 1 x 1 cm

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Well formed single octahedral Davidite crystal from Australia. Chocolate brown in color and in excellent condition all around.

AU777 - Strontianite sold

Oberdorf, Styria, Austria
Thumbnail - 2 x 1.7 x 1.5 cm

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Superb thumbnail Strontianite from Austria. The specimen has crystals to 1.2cm rising off matrix. Sharp and undamaged crystals, colorless with yellow tips.

AU778 - Anglesite $450 available

Tsumeb, Namibia
Thumbnail - 3 x 2 x 1.5 cm

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Sharply formed single white Anglesite from Tsumeb. The crystal is translucent to transparent with a slightly dimpled surface. Complete and undamaged on both sides.

AU779 - Smithsonite $750 available

Tsumeb, Namibia
Thumbnail - 2.6 x 0.9 x 0.8 cm

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Elongated single Smithsonite crystal. Complete all around and undamaged with areas of transparency.

AU780 - Brazilianite sold

Corrego Frio, Linopolis, Minas Gerais, Brazil
Thumbnail - 1.5 x 1.4 x 1.1 cm

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Fine quality single Brazilianite crystal. well crystallized all around and undamaged with areas of transparency. A really beautiful crystal that Ewell's old label incorrectly attributes to Virgem da Lapa.

AU781 - Smithsonite sold

Masua Mine, Masua, Iglesias, Sardinia, Italy
Thumbnail - 2.2 x 2.0 x 1.4 cm

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Globular yellow Smithsonite on matrix. The top spherical cluster is 1.1cm wide. Translucent, undamaged Smithsonite. The Masua mine was and old zinc and lead mine that closed in the 1990s and is noted for it's yellow Smithsonite.

AU782 - Hematite sold

El Laco Fe deposit, San Pedro de Atacama, El Loa Province, Antofagasta, Chile
Thumbnail - 2.1 x 1.5 x 1.5 cm

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Two intergrown crystals of Hematite from Chile. Ewell's label indicates \"Martite\" (a name given to pseudomorphs of Hematite after Magnetite) and a locality of Atacama Desert, Chile. However I don't believe these to be pseudomorphs after Magnetite and flat, hexagonal Hematite crystals are known from this deposit. A beautiful and unusual specimen.

AU784 - Prehnite with Calcite sold

Prospect Park Quarry (Sowerbutt Quarry),Prospect Park, Passaic County, New Jersey, USA
Thumbnail - 2.8 x 2.5 x 1.2 cm

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Three glistening spherical masses of green Prehnite crystals on transparent white Calcite crystals. Outstanding, elegant Prehnite thumbnail!!

AU786 - Topaz sold

Katlang, Mardan District, Khyber Pakhtunkhwa Province, Pakistan
Thumbnail - 2.2 x 0.6 x 0.4 cm

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Transparent, flawless light pink Topaz crystal. Ewell's old label indicates this is from Afghanistan, however I'm only aware of small blue Topaz crystals associated with Lepidolite from Paprok, Afghanistan, and this looks much more like a Katlang Topaz to me. Undamaged.

AU787 - Harmotome sold

Bellsgrove Mine, Strontian, Highland, Scotland, United Kingdom
Thumbnail - 2 x 1.7 x 1.6 cm

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Stout single Harmotome crystal from Scotland. Well terminated, complete and undamaged crystal. Quality old classic.

AU788 - Grossular sold

Baja California, Mexico
Thumbnail - 1.1 x 0.9 x 0.7 cm

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Gemmy single orange Grossular crystal from Baja. Unfortunately no further locality information was available, but it's likely from one of the many pegmatites in far northern Baja. Good transparency.

AU789 - Whewellite sold

Saxony, Germany
Thumbnail - 2.3 x 2 x 0.3 cm

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Specimen of satiny white Whewellite from Germany.

AU790 - Apatite sold

Megiliggar Rocks (Tremearne pegmatite), Breage, Cornwall, England, UK
Thumbnail - 1.1 x 0.8 x 0.8 cm

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Complete single light blue Apatite crystal from an obscure locality in Cornwall located near the town of Porthleven. Good glassy luster.

AU792 - Shattuckite after Cuprite sold

Kolwezi, Katanga, Congo
Thumbnail - 1.5 x 1.3 x 1.1 cm

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Rare specimen of Shattuckite ps. after Cuprite. These are hard to find pseudomorphs and I've only ever seen the occasional specimen. This is a nice one with a relatively complete crystal with good faces all around.

AU793 - Sperrylite $900 available

Talnakh Cu-Ni Deposit, Krasnoyarsk Krai, Russia
Thumbnail - 0.8 x 0.7 x 0.7 cm

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Highly lustrous metallic crystal of Sperrylite from the well known Talnakh deposit. A robust single crystal of this platinum species with bright luster and modified cubic form. Weighs 2.52 grams. Front, back, and both sides shown. Note that it appears dark in the photos due to it's bright, high metallic luster and is much more silvery in color in person.

AU794 - Chrysocolla after Hemimorphite $300 available

79 Mine, Hayden, Arizona, USA
Thumbnail - 2.5 x 1.5 x 1 cm

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A 1.3cm crystal of Hemimorphite that has pseudomorphed to Chrysocolla and is flat lying on matrix. This is a common pseudomorph from the mine but all I've seen before are dense, drusy coverings of small crystals. This fully exposed, fan-shaped cluster well displayed on matrix is fabulous.

AU795 - Dioptase with Calcite $500 available

Christmas Mine, Gila Co., Arizona, USA
Thumbnail - 2.5 x 1.5 x 1 cm

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Spherical clusters of green Dioptase with Calcite crystals. The largest Calcite is 1cm and the largest Dioptase hemisphere is 5mm wide. Choice and beautiful Arizona Dioptase.

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