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Mineral Specimens with Copper
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17.0 x 8.9 x 4.7 cm. This aesthetic, arborescent copper plate is one of the largest I have seen from this important copper mine in Kazakhstan. It weighs 280 grams and is complete all around on both sides. In fact, it has a little bit of ingrown matrix attached but is essentially a floater, as the bottom periphery is complete as well. The copper is fully formed, all around. Large coppers from this mine are extremely hard to come by despite its industrial scale production of copper metal. Ed, who was a major copper locality collector, owned many but none other from the Soviet republics of such size. Ex. Ed David Collection.
4.2 x 2.8 x 1.5 cm. A rich and showy, two-sided specimen of gemmy and lustrous, wine-red cuprite crystals on copper from the classic Chilean locale of Inca de Oro. The protruding, ball-like cluster of cuprite crystals is 8 mm across. Cuprite of this quality has not come out of Inca de Oro in many years. Ex. John Ydren Collection.
10.9 x 6.9 x 6.7 cm. This is a superb, large copper specimen from Russia. The cluster is very complexly crystallized, with a rich coppery patina that is bright but not "cleaned" or chemically treated. It is a floater, with no attachment points. It is 3-dimensional. Perched atop the apex of the specimen, on sharp copper crystals, are a number of 2-3mm cuprite crystals of deep red color. Really quite unprecedented for a Russian find.
2.9 x 2.3 x 2.2 cm. This is a large thumbnail specimen. It is a sparkling, jewel-like copper cluster that is 3-dimensional and exquisitely crystallized all around. In fact, it is a floater, with no attachment points. The shape is overall somewhat like a children's toy "jack" , in that it sits at many angles. The crystals are to 1 cm, and have a natural , shimmering patina that is very distinct for this find.
4.0 x 1.9 x 1.4 cm. This miniature specimen displays an elegant stack of copper crystals one atop the other, showing several habits. The crystals are to 1 cm, and have a natural , shimmering patina that is very distinct for this find. Sharp red cuprite to 5mm decorates one side of the specimen, providing a novel accent.
3.5 x 2.6 x 1.4 cm. This is a floater cluster with no point of attachment, and it looks superb from both sides. Both sides show the cuprite association, perched on the slightly shimmering copper with its unique patina characteristic of this find.
5.2 x 2.5 x 2.0 cm. A dramatic, arborescent copper specimen with sharp crystals and the unique shimmering patina this mine will, I think, be famous for someday. The piece is complete all around and has stunning , elegant form. Really quite unprecedented for a Russian find.
6.3 x 2.9 x 2.7 cm. A dramatic, sculptural, 360-degree-around copper specimen with sharp crystals and the unique shimmering patina this mine will , I think, be famous for someday. All crystals are sharp - and the piece is very intricate in person. The piece is a floater, with no attachments to mar its symmetry all around. The crystals are sharp, more evident perhaps in person than can be conveyed with a photo. Really quite unprecedented for a Russian find.
7.2 x 3.8 x 2.5 cm. This specimen has robust, fat crystals with brilliant and metallic color, sharp elongated forms of several crystallographic habits, and a minor association with the cuprite which I think this find will become known for. It is much more intricate and 3-dimensional in person.
6.9 x 2.7 x 1.8 cm. This is piece has the brightest lustre, truly metallic and gorgeous, with a contrasting red cuprite octahedron capping the termination of this arborescent copper cluster. The coppers here are sharp, some showing a distorted form that is almost, but not quite, cubic. I think the overall look of the crystal habits and the cuprite atop combine to make this a particularly important Russian copper specimen from these new finds.
6.4 x 3.1 x 1.7 cm. This floater specimen features a 2-cm-long elongated crystal atop, connecting into a sculpture-like cluster below. A dramatic, sculptural, 360-degree-around copper specimen with sharp crystals and the unique shimmering patina this mine will , I think, be famous for someday. All crystals are sharp - and the piece is very intricate in person. The piece is a floater, with no attachments to mar its symmetry all around. The crystals are sharp, more evident perhaps in person than can be conveyed with a photo. Really quite unprecedented for a Russian find.
3.2 x 2.1 x 1.9 cm. This large thumbnail is mostly an amazingly complex sharp copper crystal that is about an inch from tip to tip and complete all around. On the apex are several contrasting (in both color and visual form, of course), sharp, reddish cuprite crystals The cuprite has a high lustre and so does the copper - a unique, shimmering patina that seems unique to this find. Overall, this is a dramatic, sculptural, 360-degree-around copper specimen with sharp crystals and the unique shimmering patina this mine will, I think, be famous for someday. All crystals are sharp - and the piece is very intricate in person. The piece is a floater, with no attachments to mar its symmetry all around. The crystals are sharp, more evident perhaps in person than can be conveyed with photos. Really quite unprecedented for a Russian find.
4.1 x 3.2 x 2.2 cm. This is a sharp copper specimen for the classic Emke Mine, showing rare cubic habit on some crystals. Locality coppers from this famous mine, now defunct, are classics of African minerals. Ex. Charlie Key.
Deep red crystals of zincite along the top of a hefty matrix specimen, fronted with bright veins of native copper (lower-mid right side of specimen and top-middle photo). The zincite crystals are in a calcite vein with dispersed purplish hodgkinsonite. 9 x 8 x 5 cm.
13.5 x 9.4 x 0.8 cm. A sculptural, old-time, cabinet copper specimen from the Copper County of Michigan. This flattened, two-sided piece has sharp crystals and a nice patina. The largest copper crystal is 3.5 cm, which is pretty good-sized. A highly representative and large, well-crystallized copper from this historic area. Ex. Mullane Collection.
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Rob Lavinsky, rob@irocks.com
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