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Mineral Specimens with Copper
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A LARGE, sharp, tetrahexahedron copper crystal on a stem with an excellent patina from the Copper Country of Michigan. CLASSIC, old-time, aesthetic material. The patina is MUCH BETTER in person. 5.8 x2.8 x 2.8 cm
A VERY SCULPTURAL specimen of dendritic, spinel-twinned copper crystals with a very nice patina artfully attached to two-toned matrix from the Copper Cliff Mine, Ontario, Canada. The piece sits up very nicely without aid. It is very well crystallized for the locality. 4.8 x 4.2 x 2.7 cm
A lacy old copper specimen from the classic Jerome locality - basically entirely made up of small crystals! 3.7 x 2.7 x 1.3 cm
From the Ural Mountains of Russia, this choice, matrix, copper features a large spinel twin, 3.5 cm in length. The natural brown patina is really special, and clearly shows it hasn't been acid-cleaned. The main cruystal is huge for the locale, to be on matrix! The spinel twin crystal, so dominant, highlights the specimen - but the smaller crystals are nice, too. This is clearly an old piece from a venerable old Russian copper mining location, and I am told that it was likely mined in the mid to late 1800s. It is one of the best I have seen for the locality for sale in that I have seen several loose crystals over the years, but no such large and sharp crystal ON MATRIX as we have here. 6.3 x 5.3 x 3.4 cm
This is an incredible, important, matrix copper-calcite specimen from the late 1800s. It is classic material, but seldom do we see such aesthetically fine, and matrix, specimens! The crystals are lustrous, gemmy, and pristine! The cluster measures 3.5 inches across, with crystals to 2 inches (and doubly-terminated). The matrix is a heavy mix of copper wires infusing and penetrating a basalt, and in fact the basalt is probably held together by the rich network of the copper. According to Ed, he owned this copper some 15 years ago, sold it, and it went to Larry Conklin for his own personal collection, from whom Ed bought it back in due time. It was formerly in the collection of Robert Hesse and ROBERT B. GAGE , dating it back to the heyday of Michigan mining (sadly, though, no labels have survived with the specimen from the Gage era, although the history is noted on the Conklin label). Robert B. Gage (1875-1946) of Trenton, New Jersey, worked as a chemist for the New Jersey State Highway Commission and was a key individual in the collecting and identification of minerals, particularly from Franklin, New Jersey. The mineral Gageite was named after him. Gage frequently corresponded with Washington Roebling, Frederick Canfield and other important collectors in the early part of the 20th century. Gage supplied these collectors with minerals from Franklin, New Jersey. 18.8 x 13.4 x 6.9 cm
A remarkable, HUGE copper specimen of solid crystals, from one of the most important copper localities of the century. Probably, though, it was mined even earlier. It came out of the noteed collection of Vladimir Pelipenko in 1999 through Star van Scriver to Ed. 30.3 x 5.9 x 1.1 cm
A superbly-crystallized New Mexico copper, collected rather recently (June of 2001) in Grant County. This was a freak find, though, in an isolated single boulder. No more of this structure had been found before, nor since. It is nearly a complete floater that is virtually all crystal. Fine patina! These are now unavailable on the market and I buy them as they come back around. 3 x 3 x 2.5 cm
The first thing that comes to mind when I look at this specimen is, its wonderful patina. The bladed crystals that once were azurite are very discernible. The oxidation color of green helps bring all of the facets of this specimen into focus. These complete floaters are quite rare today, and were found in the 1940s through 1950s I am told. They show a remarkable complete replacement of azurite by copper, and are to my knowledge unique in their aspect, form, and size compared to other azurite pseudomorphs 3.9 x 3.0 x 1.8 cm
This specimen once was a rosette of intergrown, bladed, azurite crystals which have been totally pseudomorphed by copper. The specimen exhibits a very nice old patina. These complete floaters are quite rare today, and were found in the 1940s through 1950s I am told. They show a remarkable complete replacement of azurite by copper, and are to my knowledge unique in their aspect, form, and size compared to other azurite pseudomorphs 3.3 x 2.9 x 2.7 cm
Once in the noted collection of Rukin Jelks, this superb copper in calcite features several parallel growth, lustrous, transparent calcite crystals to 3.5 cm in length, that have grown over and included copper within them. Although the individual crystals are not as large as some I have seen, they are pretty darned large compared to what one NORMALLY sees for sale, and of much better clarity and pizzazz than the usual as well. The rich, pinkish color, and the degree of transparency , is top tier and nearly unequaled by any copper in calcite specimens I have seen for sale elsewhere. It is complete and displayable on all sides, all around. 4.9 x 4.6 x 4.0 cm
This is a natural nugget of copper from the glacial drifts in Michigan. As a glacier moved across the copper district during the Ice Age, it scraped this copper from the earth and then deposited it as a nugget. This 4-ounce nugget has been polished on one side to show off its penny-bright luster, which contrasts beautifully with the antique patina in the recesses. The other side has been left natural. 6.1 x 4.4 x 1.6 cm
This sculptural, CABINET-SIZED, flattened copper specimen looks like a deer with antlers and a raised tail. This showy piece hails from the famous Copper Country of the Keweenaw Peninsula of Michigan and was formerly in the Richard Hauck Collection. 10.5 x 6.0 x 0.4 cm
An unusually large and showy specimen of beautifully-crystallized copper from Russia! These gorgeous coppers of this form are not coming from the Itauz anymore; it is hoped they will again at some point, as we were all spoiled by the world-class coppers the mine was turning out for awhile as the strip mine passed a series of wonderful pockets. But apparently the mining has moved on around the pit. Anyway, this is just a superb copper specimen in every way , from ANYWHERE - beautiful dendritic form and fine "antique" luster. 7.8 x 6.1 x 0.5 cm
This is a sculptural specimen of penny-bright copper from Morenci, Arizona - with a couple of pieces of matrix still attached. Beautiful dendritic form! 13.5 x 5.8 x 3.9 cm
A DRAMATIC, LARGE CABINET Pennsylvania copper! This sculptural and uncommonly large copper has a boxwork structure and a nice patina. One of the largest Penn coppers I have seen for sale . 1200 grams weight! 22.5 x 12.3 x 4.5 cm
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Rob Lavinsky, rob@irocks.com
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share specimen![Copper from Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-64236a.jpg]](db_pics/mdpics/MD-64236a.jpg)
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