Chalcedony on Siderite

Hüttenberger Erzberg | Hüttenberg | Sankt Veit an der Glan | Carinthia | Austria

Size: 5.4 x 5.3 x 3.1 cm

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An extremely pretty collector´s item with glassy, botryoids of light grey-blue Chalcedony with a characteristic greasy luster. Very typical f ...

Argyrodite

Himmelsfürst Mine | Brand-Erbisdorf | Freiberg | Saxony | Germany

Size: 3.3 x 2.4 x 2.0 cm

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You are looking at a very excellent German Argyrodite specimen. Steel-gray, metallic crystals shape spherical-stalactitic aggregates, which h ...

Rhodonite & Galena

North Mine | Broken Hill | New South Wales | Australia

Size: 3.8 x 3.5 x 2.0 cm

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This is an excellent Rhodonite crystal measuring 2.7 x 1 x 1 cm with excellent terminations and a small sidecar of the same species. The bloo ...

Otavite ANALYZED

Tsumeb Mine (Tsumcorp Mine) | Tsumeb | Otjikoto Region | Namibia

Size: 3.7 x 2.4 x 1.8 cm

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Another great specimen of the extremely rare Cadmium Carbonate Otavite, on this specimen again, accompanied by botryoidal blue-green Rosasite ...

Otavite ANALYZED

Tsumeb Mine (Tsumcorp Mine) | Tsumeb | Otjikoto Region | Namibia

Size: 5.3 x 4.6 x 2.7 cm

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This is a fine old-time miniature sized specimen with the very rare cadmium carbonate Otavite, typically accompanied by less blue-green Rosas ...

Rhodochrosite

Uchucchacua Mine | Oyon | Lima Department | Peru

Size: 6.6 x 5.4 x 2.9 cm

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This is an excellent Peruvian Rhodochrosite specimen from the Uchucchacua Mine, which is well-known for Silver and Rhodochrosite. Deep raspbe ...

Malachite

Hohenlimburg Quarry | Hohenlimburg | Hagen | North Rhine-Westphalia | Germany

Size: 4.8 x 3.4 x 2.8 cm

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This is an exceptionally beautiful Malachite specimen from the Hohenlimburg limestone quarry near the town of Hagen in northwest Germany. Sev ...

Glaukosphaerite

Kasompi Mine | Mutshatsha | Lualaba | Dem. Rep. of Congo

Size: 6.9 x 4.9 x 2.2 cm

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Glaucosphaerite is an extremely rare Copper-Nickel Carbonate and this exceptional specimen is literally covered in light green, acicular Glau ...

Glaucodot

Tunaberg | Nyköping | Södermanland County | Sweden

Size: 1.4 x 1.0 x 0.9 cm

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A textbook crystallized Glaucodot crystal associated with two smaller "cousins" from the world-famous Swedish site of Tunaberg. Although the ...

Gahnite

Franklin Mine | Franklin | Sussex Co. | New Jersey | USA

Size: 3.0 x 2.2 x 2.1 cm

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A jet-black Gahnite octahedron perched on a Calcite cleave from the famous Franklin Mine in New Jersey. Gahnite is a relatively rare Zinc-Alu ...

Prehnite

La Combe de la Selle | St-Christophe-en-Oissans | Grenoble | Isére | France

Size: 5.5 x 4.1 x 2.4 cm

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Beautiful hemispheric cluster of countless, slightly curved, sharp Prehnite crystals with excellent vitreous luster. The crystals are translu ...

Matlockite

Bage Mine | Cromford | Matlock | Derbyshire | England

Size: 2.2 x 1.8 x 1.3 cm

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This is a very excellent of the extremely rare Lead mineral Matlockite, which was first discovered in the middle of the 19th century and name ...