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15 specimens listed
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Cuprite - classic Tsumeb
stock #16.1-470-(CN5501)
Tsumeb
Otjikoto Region, Namibia
5.1 x 4.2 x 3.2 CM (small cabinet/ large miniature)
price: $750


A rich array of stacked, aligned crystals of Cuprite from Tsumeb. Cuprite is not rare from this mine but this is an unusually esthetic and sizable cluster of crystals, the largest to almost 1 CM. Under average lighting this looks very dark, almost black, but with strong lighting the more red color is seen. Most of the crystals are translucent and can glow with a good backlight. In excellent condition the matrix hosts a few isolated crystals but the main pure cluster of Cuprite is a full 5 CM across. The epitaxial arrangement of the Cuprite (most of these are Octahedra and aligned) is also very evident in person. A much better than usual Cuprite from Tsumeb, this is ex Charles M. Noll collection.

Cuprite with Miersite and Marshite
stock #10.1-085
Rubtsovsky Mine, Rubtsovshy District
Altaiskii Krai, Russia
4.3 x 3.7 x 2. CM (miniature)
price: $875
Early summer 2021

This is mostly a fine Cuprite specimen with a main octahedron over 3 CM across, which is very sharp and defined. There are several other smaller crystals and between them are some excellent small crystals of Miersite that are bright yellow, gemmy and well-formed. The Marshite is smaller and less distinct but still a nice addition. From the great find at Rubtsovskly Mine in 2010, these were instant classics when found. The Cuprite is especially lustrous and has geometric growth structures well displayed on the larger faces. Aside from the unavoidable broken area where this was removed, the specimen is perfect, the main crystals are in undamaged condition and are in textbook forms.

Cuprite on Chrysocolla
stock #AX-19-263
Mashaba West Mine, Kolwezi Mining District
Lualaba Province, Democratic Republic of Congo (Zaire)
5.1 x 4.1 x 3.8 CM (small cabinet/large miniature)
price: $580
Early summer 2021

Perfect and with fine form, dark red Cuprite crystals are perched on contrasting blue-green Chryosocolla. Modern classics, good Cuprites from this region are highly regarded. These crystals, besides being damage-free, are also gemmy, with any backlight they glow a ruby red color. The photos here are made with normal lighting to give a fair idea of the specimen without extra enhancing illumination. We have seen many specimens from this locality but very few are so perfect. The octahedral crystals here show both twinning and some elongation. An older piece, (we believe from the 1970-80 era), with several earlier labels from previous collections, including Paul Jung, James Lewis, Greg Kirby. This is certainly a choice specimen far beyond average quality.

Cuprite - very fine vintage Cuban
stock #0117-JM-4357
Mina El Cobre, El Cobre
Santiago de Cuba Province, Cuba
6.2 x 4.8 x 3.1 CM (cabinet)
price: $1850
Early summer 2021

An extraordinary Cuprite from Cuba that is well over 200 years old. Several very old labels including one from a museum in Sweden come with this piece. This mine is one of the oldest Copper mines in the new world, begun in 1532 under the Spanish. This is the only Copper mine of any note in the entire country, it has been flooded for some decades. The Cuprites fill a vug with sharp, lustrous crystals many of which are a gemmy red color. The crystals are tightly clustered and with magnification some small areas of native copper are seen. Very close magnification also shows what seem to be very tiny Cubanite crystals (not confirmed by x-ray) in two habits. Any Cuban Cubanite is very rare, the type locale is only about 80 KM to the east, though the specie is not listed by Mindat from Cobre. With or without Cubanite this is about as fine a specimen as exists, it is certainly larger and better than those we know of in US museums. Ex. John Marshall collection (and many others).

Cuprite - Classic locale and form
stock #20.1-876
Chessy Copper Mine, Chessy-les-Mines, Villefranche, Rhône
Auvergne-Rhône-Alpes, France
1.3 x 1.1 x 1 CM (thumbnail)
price: $390
new year 2021

A perfect thumbnail crystal that is complete all around and has textbook perfect hoppered faces. The Cuprite is coated with Malachite as is typical from Chessy. This locality is famous, it is one of the oldest and most classic of European mineral localities. This example is unusually perfect, undamaged with no contacts or missing parts. This was in the collection of Terry Szenics who is well known for excellent taste in minerals, especially copper species.

SOLD Cuprite with Native Copper
stock #SOLD 20.1-602
Wheal Gorland
Cornwall, England
3.2 x 2.6 x 1.7 CM (small miniature/ large thumbnail (toenail))
price: $0
new year 2021

A complex mass of well-formed Cuprite octahedrons mixed with a few areas of Native Copper. There also appears to be a few tiny pseudomorphs of Copper after Cuprite best seen under magnification. With strong lighting the deep red of the Cuprites is easily seen but under subdued illumination the color is more brown to black. In excellent undamaged condition, the individual crystals are up to 8 mm though most are much smaller. A choice example from this well-known and venerable Cornish locality. Ex Les Hitchings collection.

Cuprite with Native Silver
stock #10.1-086
Rubtsovsky Mine, Rubtsovshy District
Altaiskii Krai, Russia
4.6 x 4.6 x 4 CM (miniature)
price: $780
new year 2021

Just over a decade ago the incredible discovery of fantastic large Cuprites from Rubstovsky (Russia) was huge news in the mineral world. This is an especially choice example of a fine undamaged Cuprite with the addition of having Native Silver on some areas. Even without the Silver this is a super Cuprite, it has excellent form and luster, is in fine condition and with good lighting the inner red colors are seen on some edges and faces. This piece was found in the early discoveries, it is of a style and quality that is no longer coming out (the find may have been exhausted but there are still some coming from dealers storage). The bright luster makes this hard to show well in photos, it is far better in person and very fine for the discovery.

Cuprite -Large complex crystal on Malachite
stock #0739-JM-1693
Dikuluwe Mine, Kolwezi
Shaba, Democratic Republic of Congo (Zaire)
7 x 6.6 x 3.8 CM (cabinet)
price: $880
Spring update

A large, somewhat crude red Cuprite octahedron (3.5 CM) with some unusual growth features and complex faces sets nicely on Malachite matrix. Two of the faces have odd holes (one circular, one triangular) and several parts of the crystal show stepped regrowths. Great color contrast, with backlighting the Cuprite glows a brilliant cherry red. We have not backlit the specimen as that can be misleading, but the cuprite is fully translucent and seems to be facet grade clear red inside. Ex John Marshall collection (his label and card are included) acquired in 1990 from G. Gauthier.