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Mineral Specimens with Copper
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An incredibly aesthetic, completely crystallized copper from Onganja. It has these two beautifully balanced branches, made up of sharp, chunky crystals from top to bottom, and a wonderful antique patina (less red in person). You just couldn’t ask for much more in a copper mini for the locality, where you rarely see such 3-dimensional individual crystals of copper. A superb copper mini, particularly for the locality! 4 x 2.8 x 0.6 cm
This type of pseudomorph is exceedingly rare in nature. It is an old time specimen that was once part of the Koenig collection at the Seaman Museum at Michigan Tech. Sparkling modified cubes, to .50 cm across, of what was once cuprite, now exhibit the rich brown color of copper. Looking closely at the matrix affords the viewer with glimpses of native copper. This unusual specimen is further enhanced by its pedigree as if it wasn't enough to be originating in America’s premier secondary copper deposit, Bisbee. 5.0 x 3.7 x 2.4 cm
This very aesthetic floater is superbly crystallized with modified dodecahedrons, to 2.0 cm across, just a really elegant example of Ajo copper. It was once in the collection of the late Gerald Herfurth and later in Les Presmyk’s possession. I particularly like the free form way the specimen sits up. 6.4 x 4.7 x 4.6 cm
This large, remarkable, crystallized copper specimen is wonderfully patinated by malachite and cuprite. The largest crystal measures 3.5 cm across. This old time specimen comes with the label of acclaimed Colorado mineral dealer, Lazard Cahn (died 1940), as well as the label of premier Bisbee collector, Richard Graeme and most recently the Stoudt collection in Texas. It is extremely large for a Bisbee copper and is crystallized throughout, front and back. 24.5 x 13.1 x 4.1 cm
4.5 x 3.4 x 2.5 cm. A sculptural, very well-crystallized and aesthetic copper specimen from the famous mines at Bisbee, Arizona. Crystal forms include spinel-twins and tetrahexahedrons and the crystals have very bright, coppery patina. Ex. Dave Stoudt and Chuck Youngblood Collections.
I particularly like the branching or dendritic appearance of this specimen. But make no mistake about it, this piece is composed of individual crystals, to .6 cm across. It has bright metallic luster along with its outstanding form. Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 3.0 x 2.8 x 2.6 cm
This specimen is a complex of many copper crystals, highlighted by a bright, metallic, spinel twin, measuring 2.0 cm across.Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 3.4 x 3.2 x 3.0 cm
I really like the hemispheric, sculpted quality of this copper specimen, which is composed of intergrown crystals. At the lower left corner is an exquisite spinel twin, measuring 1.0 cm across. The symmetry of the curved shape has a very calming and eye appealing effect on the viewer. Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 6.8 x 5.1 x 3.2 cm
This copper specimen exhibits a rich, dark brown patina everywhere except for the bright, nearly 1.75 cm across, spinel twin, perched on the very top of the specimen. 7.0 x 4.5 x 2.9 cm
Interconnected, bright, metallic, copper crystals, to .6 cm across, comprise this specimen which exhibits a fan-like appearance. Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 4.6 x 4.5 x 2.5 cm
If ever a mineral specimen took on the appearance of a branching or dendritic, living plant, this would surely qualify as one. Up close, it is far more lustrous than it first appears. Nifty! Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 3.5 x 2.2 x 1.3 cm
On a dark, coppery colored matrix, is a large cluster of finely crystallized, well patinated, vertical crystals of copper, to .5 cm across. VERY HEFTY and weighty, 3-dimensional piece! 5.1 x 5.0 x 4.9 cm
I must say that when this specimen is on a stand and upright, it has a rather elegant appearance. A spear-like cluster of intergrown, patinated, crystals, to .7 cm across, comprises this piece. Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. . 7.8 x 4.6 x 3.1 cm
This is a slender, flattened, dendritic, group of intergrown crystals with high luster.Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. . 4.6 x 1.9 x 1.4 cm
This, I must say, is an odd specimen. It is composed of very fine grained copper, on both sides, and yet a crinkled, thin sheet of copper is attached. Growing conditions for this specimen must have changed drastically for this unusual combination to form. Odd, yet intriguing. Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 6.4 x 4.2 x 1.7 cm
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Rob Lavinsky, rob@irocks.com
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