ex. Helmut Bruckner
ex. Willy Israel
Not from the Bruckner Collection, but something I had to get posted soon anyhow...this is a fantastic cerussite crystal from Tsumeb, of a very rare style. The color , blood red, is due to minute iinclusions of cuprite inside. Such cerussite came from only a few pockets, and this is the rarest of styles for the color - a "normal" cerussite twin as opposed to the usual etched, elongated, or melted-type appearance this material usually takes. Complete on both sides, translucent, and just breathtaking for color, this is one of the finest Tsumeb thumbnails I have had the pleasure of handling, for my tastes. It is indeed expensive, no question, but its unique. I had this first perhaps 3 years ago, and was recently able to trade it back from the owner.
A choice set of 3 matched crystals of superb quality, all with absolutely pristine and even, similarly colored malachite alteration over the original cuprite. These are examples of one of the French classics of the early to mid 1800s. Today, they still turn up on the market often enough to see, but not in such size and pristine condition, very often. And the modified, complex habits are harder to get than the simple octohedra. In this set: the upper right crystal is 2 cm across, to 1.2 cm on edges; lower right is 1.4 cm on edge of the octohedron, and the left crystal is 1.3 cm on edges. All are pristine floaters, 360 degrees. From a museum collection, and also previously from the Schortmann collection. Based on prices I saw at Munich, I think these could sell for more if separated (a shame). i had 3200 euros on it at the show, when I had just exchanged for them from a collection. at $4000 USD now, thats even a bit less.
ex. Grace Dearborn
A superb example of the rare habit of cubic cuprite crystals, showing modified corner terminations, that made this locality famous for the species. Few are seen today and this piece was almost certainly collected in the early to mid-1800s. It was in the well known collection of heiress Grace Dearborn in the early 1900s, and then in the collection of Phil Scalisi, a well known collector of the classics on the East Coast. The specimen is actually red in good lighting, more so than most from there, and the cubic shapes are fascinating and contain subtle details. Association of a microcrystallized green mineral is also present.
ex. George Elling
A very sharp and rare example of copper having completely and totally replaced a sharp cluster of cuprites! The piece is complete all around, and quite attractive. Surely an older specimen, but I have not seen another quite like it from here, only partial replacements and smaller crystals as well.
ex. Francis and Patricia Benjamin
These are old classics dating from befor e1850 I am told, and this is one of the larger such hoppered crystals I have seen for sale out there. It is exquisitely well formed, symmetric, and has a wonderful green alteration patina atop the cuprite. The Benjamins collect for aesthetic quality, not size or price range, so you can see why it was a special piece to them (especially as French collectors, since it is so hard to find these in so nice a display quality!)
4.8 x 3.6 x 2.8 cm. A spongy, branching copper with a distinctive coating of cuprite, from Tsumeb.
4.9 x 2.4 x 2.1 cm. An old Arizona copper-mineral combo specimen out of the Ed David collection - branching copper with distinct crystals of deep maroon-colored cuprite on it (not just a coating, but actual crystals).
7.1 x 7.0 x 1.7 cm. A delicate looking lacework of cuprite-coated copper crystals give this very sculptural, flattened, arborescent copper specimen a beautiful appearance on this fine piece from a NEW FIND at the Daye Mine of China.
9.0 x 6.5 x 5.0 cm. A UNIQUE and INCREDIBLE Tsumeb specimen of isolated malachite pseudomorphing sharp cuprite crystals festooning durable matix. This is a supremely attractive and rare pseudo.
3.2 x 2.8 x 2.1 cm. An UNUSUAL, UNIQUE and showy specimen from the famed Emke Mine at Onganja of chalcotrichite included in calcite with TWO habits of copper. Leaf copper is VERY UNCOMMON from the Emke Mine and having the antenna-like copper wires on a calcite crystal is really UNUSUAL. The copper has a very nice patina and the overall piece has a very sculptural form.
2.2 x 1.4 x 1.3 cm. An aesthetic cluster of GEMMY and lustrous, deep cherry-red cuprite crystals from the famous Red Dome Mine of Australia. The sharpness and gemminess of the crystals are the reason that Red Dome cuprites are arguably considered to be the world’s finest. Seldom available on the market.
1.7 x 1.2 x 1.2 cm. Rare in good crystals from Africa, but even rarer from this classic French locality - a floater crystal of cuprite, with hints of greenish patina from the copper content (often, cuprite crystals go completely green). Ex. Don Belsher Coll.
4.5 x 4.5 x 4.0 cm. An UNUSUAL, UNIQUE and showy specimen from the famed Emke Mine at Onganja of chalcotrichite included in calcite with TWO habits of copper. Leaf copper is VERY UNCOMMON from the Emke Mine and having the scattering of tiny, elongated, spinel-twined copper crystals on and in calcite crystals is a nice addition. The rosette-like cluster of included calcite crystals on the extended copper leaf is striking. The copper has a very nice patina and the overall piece has a very sculptural form.
2.4 x 1.5 x 1.3 cm. A KILLER, GEMMY and lustrous, deep cherry-red cuprite crystal from the famous Red Dome Mine of Australia. The sharpness and gemminess of the crystals are the reason that Red Dome cuprites are arguably considered to be the world’s finest.
2.1 x 1.8 x 1.2 cm. A fine, complete crystal of cuprite, pseudomorphed on its surface (as most are) by a coppery patina. The faces of this crystal are absolutely sharp, and the crystal has textbook form. It is gemmy inside, under the coating of malachite. Ex. Fred Pough and George Elling collections.
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