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Mineral Specimens with Copper
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A truly superb, partially cuprite-coated arborescent copper specimen from Broken Hill, Australia. Front and back views are given of this dramatic christmas-tree looking copper. OLD SPECIMEN from the Dan Ehrling Collection. 5.1 x 3.5 x 2.3 cm
An EXCEPTIONALLY FORMED , 3-dimensional BISBEE copper with a great patina. This CABINET-SIZED piece consists of two nearly perpendicular connected plates (spinel twins?) with arborescent to dentritic copper crystal clusters. The large copper crystals are tetrahexahedrons. This old-timer was in the collection of respected Texas collector, Dr. HM Brennecke and the Bisbee location was confirmed by noted Arizona collector/ dealer Evan Jones. Excellent Bisbee coppers are very uncommon, they just were not preserved. 10.0 x 5.7 x 5.0 cm
large Arizona copper with penny-bright luster, moderately crystallized all over. Big and impressive! QUITE LARGE and showy for the locality, which is known for azurite and malachite to be sure but from which native copper is rare! 15.8 x 10.4 x 4.0 cm
4.1 x 1.3 x 0.3 cm (largest). Four beautifully crystallized specimens of native copper from the finds at the Itauz Mine, which has turned out world-class copper specimens periodically as the strip mining there moves back around to the specimen-producing area.
An extraordinary Michigan copper, wonderfully sculptural, with a well crystallized "stalk" leading up to a monster single crystal of fine form (4.25 cm). This crystal is complete and uncontacted all around, and in fact the piece can be displayed from either direction. 6.8 x 4.3 x 2.5 cm
A rich, 3-dimensional floater "bush" of copper crystals from Australia, with a nice antique patina. Displayable from any direction. 4.5 x 4.5 x 3.3 cm
A superb, lustrous arborescent copper from an uncommon Nevada locality. This specimen has excellent aesthetics, way better than most Nevada coppers you see. Considering the immense richness of Nevada in terms of gold, silver, and copper, it always surprises me that so few fine specimens of these native elements are for sale. In part, this is because the ores tend to be very disseminated, and in part it is also because a lot of the crystallized zones were hit long ago and specimens which were preserved simply have been "lost" over the years in many cases. This mine , I am told, still produces specimens from the dumps on occasion, though not of this calibre. Front and back views are given. 6.7 x 3.4 x 1.3 cm
3.6 x 3.2 x 1.5 cm. Hetaerolite is a rare zinc, manganese oxide. So, we have here a showy, rare and old combination specimen from the famous Copper Queen Mine at Bisbee. Dark, rust-brown, bubbly hetaerolite totally coats a copper leaf. Ex. Dave Stoudt and Chuck Youngblood Collections.
2.6 x 2.3 x 2.0 cm. A fine, old-time copper and calcite thumbnail specimen from the famous Emke Mine at Onganja, Namibia. The lustrous, water-clear calcite rhombs are exquisitely wrapped with garlands or wreaths of spinel-twinned copper crystals with a very nice patina. Ex. George Elling Collection.
7.8 x 2.8 x 1.2 cm. A lovely and quite sculptural arborescent growth of Copper crystals. The branching is quite balanced, and there is even a three-dimensionality to it that is very rarely seen. The patina is excellent, and a few of the copper crystals near the base reach close to 1 cm.
14.8 x 8.3 x 4.0 cm. During growth this vug obviously was a thin septa in a pocket, standing mostly free of the walls, because smithsonite grew on both sides of this rind. The viewing side is covered in small clusters, to .6 cm across, of translucent, green, rice-grain, crystals of smithsonite. Their green color is due to copper content. It is a pretty enough smithsonite, anyhow. However, the key point to this specimen is the subsequent growth of malachite-coated, copper crystals, in a dendritic pattern, reaching 1.0 cm across. Ex. Richard Hauck Collection.
2.2 x 2.2 x 1.2 cm. A fine thumbnail cluster of copper crystals from the Ray Mine of Arizona. This piece is dominated by the very sharp, spinel-twinned copper crystal that looks like a sail. The entire specimen has a beautiful, green patina. A micro calcite crystal looks like a diamond embedded in the copper. The piece probably dates to the famous finds of the mid-1970s and is one of the few that were not cleaned to remove the malachite patina. Ex. Irv Brown Collection.
An incredible copper specimen that would be impossible to distinguish from electrolytic copper, if not for the rock matrix and the fact that I know who collected it. A myriad copper crystal forms include flattened spinel twins and aborescent crystal groups. This piece comes from the famous Cliff fissure, source of many fine Copper Country specimens. 5.0 x 4.1 x 3.0 cm
Bright copper clearly visible inside and emerging from sharp, transparent calcite crystals. A Michigan classic, and also a fine miniature! This piece has excellent form and contrast. The crystals are unusually transparent. It is unusual in that regard. It comes from a local Dallas collection. 5 x 3.2 x 2.6 cm
5.5 x 3.1 x 2.2 cm. Hetaerolite is a rare zinc, manganese oxide. So, we have here a showy, rare and old combination specimen from the famous Copper Queen Mine at Bisbee. Dark, rust-brown, bubbly hetaerolite totally coats a copper leaf. The botryoids look like a grape cluster, which is nicely accented by a diagonal flat plate of goethite on one side. Ex. Dave Stoudt Collection, who according to their catalogue, purchased this piece in Bisbee in 1994 from then Bisbee rock shop owner Chuck Youngblood.
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Rob Lavinsky, rob@irocks.com
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share specimen![Copper from Broken Hill, Yancowinna Co., New South Wales, Australia [db_pics/mdpics/MD-18885a.jpg]](db_pics/mdpics/m/MD-18885a.jpg)
![Copper from Waterloo Mine (Waterloo claim), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-18902a.jpg]](db_pics/mdpics/m/MD-18902a.jpg)
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![Copper from Mountain City Mine (Mountain City Mercur; Mountain City Consolidated), Mountain City District, Elko Co., Nevada, USA [db_pics/mdpics/MD-192210a.jpg]](db_pics/mdpics/MD-192210a.jpg)
![Smithsonite (Var: Cuprian Smithsonite), Copper from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-192215a.jpg]](db_pics/mdpics/MD-192215a.jpg)
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![Copper from North Cliff Mine, Phoenix, Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-19425a.jpg]](db_pics/mdpics/MD-19425a.jpg)
![Copper from Quincy Mine, Hancock, Houghton Co., Michigan, USA [db_pics/mdpics/MD-19429a.jpg]](db_pics/mdpics/MD-19429a.jpg)
![Hetaerolite, Copper from Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-195439a.jpg]](db_pics/mdpics/MD-195439a.jpg)