Bayldonite pseudomorph after Mimetite

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

Size: 3.0 x 1.8 x 1.0 cm

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Here is another classic Tsumeb specimen: a highly coveted pseudomorph of Bayldonite after Mimetite. A super aesthetic, 3 cm tall spray of bri ...

Niobophyllite Ex Anka & Uli Bahmann coll

Mount Malosa | Zomba Plateau | Malawi

Size: 6.5 x 3.1 x 1.5 cm

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Here we have a wonderful piece of a Niobophyllite crystal, nicely exposed on Microcline matrix. Niobophyllite is an EXTREMELY RARE species co ...

Dolomite Ex Dr. Joachim Jahn coll.

Cantera Azcárate | Eugui | Pamplona | Navarre | Spain

Size: 7.2 x 6.3 x 5.2 cm

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Dolomite is generally considered a rather boring whitish, grayish, beige mineral, mainly a matrix mineral for any other "more interesting" sp ...

Cuprite

Kombat Mine | Kombat | Grootfontein | Otjozondjupa Region | Namibia

Size: 5.9 x 3.6 x 2.8 cm

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An extremely fine specimen consisting of a rich Copper ore matrix with a wide open vug. The cavity is richly covered with distinctly dark red ...

Chabazite-Ca Ex Dr. N. Pesl collection

Maglovec Quarry | Vyšná Šebastová | Prešov District | Slovakia

Size: 9.1 x 5.6 x 3.9 cm

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A very fine specimen of Chabazite from Maglovec Quarry, an active stone pit where Andesite and Dioritporphyrite is mined. The place is known ...

Chalcopyrite Var. Blister Copper

Levant Mine | Trewellard | St. Just | Cornwall | England

Size: 10.1 x 5.9 x 3.9 cm

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A specimen of Blister Copper, the spherical form of Chalcopyrite, which is well known from numerous mines in Cornwall, the most southwesterly ...

Amethyst

Wave Hill Station | Kalkarindji | Victoria-Daly | Northern Territory | Australia

Size: 10.2 x 7.2 x 3.9 cm

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Here is yet another Amethyst specimen from a lesser-known locality: Wave Hill station, a cattle transfer station in the Australian outback of ...

Tarbuttite

Skorpion Mine | Rosh Pinah | Oranjemund | Lüderitz District | Namibia

Size: 5.4 x 4.4 x 1.7 cm

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This is a specimen of Tarbuttite over 5 cm tall, and with excellent euhedral tabular crystals. These have pale mint-colored, glassy-transpare ...

Scholzite Ex Dr. Gerd Tremmel coll.

Skorpion Mine | Rosh Pinah | Oranjemund | Lüderitz District | Namibia

Size: 8.4 x 4.9 x 4.4 cm

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Good Scholzite crystal specimens are probably better known from the locality Reaphook Hill in Australia’s Outback. However, this superb Schol ...

Charlesite & Calcite

Wessels Mine | Kuruman | Kalahari-Mn-Fields | South Africa

Size: 6.2 x 5.6 x 3.9 cm

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An excellent combination specimen with very beautifully crystallized six-sided Charlesite, very rich on the back and equally beautifully crys ...

Chalcopyrite & Galena

Georg Mine | Willroth | Horhausen | Westerwald | Rhineland-Palatinate | Germany

Size: 7.4 x 3.9 x 2.6 cm

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The “little brother” of the previous specimen (#4213). From the same mine, very similar in formation and paragenesis and therefore the descri ...

Malachite Ex Dr. Schönfelder coll.

Anna Quarry | Letmathe | Hagen | North Rhine-Westphalia | Germany

Size: 8.2 x 5.9 x 3.5 cm

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This exceptional specimen evokes memories of Malachite from Siegerland, but it is very typical for the abandoned Anna Quarry near the town of ...