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Mineral Specimens with Cuprite
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6 x 4 x 1.7 cm. Very fine bright red crystals set along one side of the matrix. This is a showy specimen of a mineral not often found here. Ex. Willy Israel Collection.
4 x 3.5 x 3 cm. This is a fine example of the rare red cerussites, found just once at Tsumeb. This one is relatively is unusual in that 1) the crystals atop is so euhedral and 2) the association with white calcite. Ex. Willy Israel Collection.
4 x 3 x 1.75 cm. Rich red inclusions of chalcotrichite completely fill these calcite rhombohedra with a most unusual color! Ex. Willy Israel Collection.
4.2 x 3.5 x 3.1 cm. A classic specimen from the famous Emke Mine at Onganja, Namibia. A gemmy, highly lustrous, 1.7 cm, blood-red cuprite rests in a quartz-lined vug. The cuprite and quartz are fantastically accented by lustrous, primary malachite blades. Ex. Martin Zinn Collection.
6.2 x 5.0 x 3.0 cm. A sculptural, latticework and box-work of rust-red, cuprite-coated, flattened spinel-twinned copper crystals with a bit of attached matrix from the famous Ray Mine of Arizona. Ex. Stoudt Collection.
MD-177332 - Calcite, Cuprite (Var: Chalcotrichite) - - Archived
Czar Mine (Czar Shaft), Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
cabinet, 10.8 x 6.0 x 5.5 cm.
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10.8 x 6.0 x 5.5 cm. A fine cabinet specimen from the famous Czar Shaft at Bisbee. Gorgeous and lustrous, bright red, calcite crystals are included with cuprite variety chalcotrichite and copper in numerous, very well-placed vugs on all sides of the robust gossan matrix. The calcite crystals are found in clusters or as beautiful, isolated crystals to 7-8 mm or so. From the 200 ft. level of the Czar Shaft prior to the mine closing in 1944. Ex. Dave & Emily Stoudt Collection.
8.2 x 7.3 x 7.2 cm. This is a beautiful combination of rich native copper, bright, blood-red cuprite and contrasting, white calcite, referred to as campbellite from this mine. 571 grams or 1.4 pounds. Ex. Stoudt Collection.
4.6 x 2.9 x 2.3 cm. A fine arborescent cluster of deep wine-red, octahedral cuprite crystals from the famous Copper Queen Mine at Bisbee.
2.3 cm. A very large and sharp example of this classic pseudomorph, likely recovered prior to 1850. Seldom do you see one so large that is also equant, and not distorted. This crystal is 2.3 cm tip to tip. Ex. Eric Asselborn and Laura and Stevia Thompson Collection.
6.0 x 3.9 x 3.2 cm. A rich specimen with three clusters of the very rare species connellite, featuring: two spherical aggregates atop the specimen measuring 5 and 8mm across; and another group of crystals in freestanding form in a protected vug. The matrix is massive cuprite with attached host rock at its back. Ex. Rice Northwest Museum and Esker Mayberry Collections.
11.4 x 10.1 x 5.6 cm. A vivid specimen with lustrous, red crystals. Ex. Rice Northwest Museum and Esker Mayberry Collections.
1.6 x 1.5 x 1.5 cm. A fine and aesthetic cluster of lustrous, sharp, dodecahedral cuprite crystals from the famous and now-closed Tsumeb Mine. A dusting of malachite is a nice accent. A small find of specimens of this quality was found in the early 1980s. Ex. Carl Davis Collection.
2.3 x 2.3 x 1.5 cm. A very sharp, gemmy, complete all-around, frosted cuprite crystal from the famous Emke Mine of Namibia. Emke cuprites are typically coated with malachite and in this case the malachite has been removed mechanically, revealing the luscious red color. Ex. Stoudt Collection.
7.7 x 5.7 x 5.2 cm. This specimen is an intergrowth of copper, malachite and cuprite. The copper takes on a dark, reddish-brown patina where it coats the copper. Uncoated copper has a fresh coloration. These darker colors are offset by rich green malachite overgrowth of copper. Ex. Harold Urish Collection.
0.8 x 0.7 x 0.6 cm. A sharp thumbnail example of the pseudomorphing of malachite after a sharp original crystal of cuprite. These also come from Africa, but are now very hard to obtain from the classic Chessy locality, for which this form is also distinct.
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Rob Lavinsky, rob@irocks.com
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