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9.3 x 4.9 x 1.2 cm. A "nugget" of native copper, with a pretty antique patina, showing some rough crystals, from Michigan copper country.
5.3 x 3.9 x 1.1 cm. A LARGE and sculptural silver-copper "half-breed" from the famous Copper Country of the Keweenaw Peninsula, Michigan. The piece is around 75-80% silver, which is VERY UNCOMMON. Most half-breeds are over 50% copper. A weighty 74 grams or 2.6 ounces. Ex. Charles Hansen Collection.
9.4 x 6.2 x 0.8 cm. A thin fan (a seam) of native copper, an old-timer from Arizona.
10.3 x 7.9 x 6.9 cm. A large specimen of native copper consisting almost entirely of small, rough crystals in a lacy framework. You can see bits of matrix here and there still attached to the copper. Ex. Dave Stoudt Collection.
2.4 x 1.9 x 1.7 cm. Here is a wonderful thumbnail size specimen of the famous pseudomorphs of Copper after Aragonite from Corocoro. These floater specimens are well known from Bolivia for their great form and color, and this piece has the classic and unique form that has made these pieces some of the most well known and highly sought after pseudomorphs around. This specimen is a very fine example of this material. There hasn't been any significant amount of these specimens on the market in approximately 25 years, and they are often only found in old collections. Ex. Brian Kosnar.
14.3 x 11.2 x 1.1 cm. Most people are familiar with the Copper pseudomorphs after Aragonite from this locality, but to find non-pseudomorphic native Copper is rather rare. This large "sheet" of partially crystallized Copper is a great display from this historic locality. It has a gorgeous blue-green patina with spots of minor reddish Cuprite and a few areas with bright Copper crystals exposed. These pieces started to trickle out around October of 2007. Ex. Brian Kosnar.
5.5 x 1.6 x 1.4 cm. This is a "tree" of completely crystallized copper, out of the collection of Ed David - consisting of hundreds of sharp little crystals from top to bottom! No matrix, no massive copper, just solid crystals of exquisite crystallization.
6.2 x 4.3 x 3.5 cm. This exceptionally bright specimen hosts a very nice modified dodecahedron of Copper with relatively sharp faces which are accompanied by a few branching "arms" of Copper. The central crystal is unusually robust, equant, and 3-dimensionally complete all around. Ex. Richard A. Kosnar Collection.
14.7 x 9.0 x 5.7 cm. This specimen is certainly one of the most peculiar and attractive Arizona Copper specimens that I have encountered. It has an almost organic, plant-like appearance which comprises several hundred tiny, sharp cubic Copper crystals which have grown into "pseudo-rosette" formations and are all linked together forming a gorgeous overall display specimen that resembles fire coral or a similar kind of aquatic plant life. Ex. Charlie Freed and Richard Kosnar Collections.
4.8 x 4.3 x 2.0 cm. A VERY FINE, OLD-TIME Michigan copper specimen with an excellent provenance. Super-sharp, tetrahexahedron copper crystals, with a beautiful patina, are arranged on both sides in an aesthetic, floral pattern. A CLASSIC and HISTORIC specimen, formerly in the Fred Cassirer and Richard Hauck Collections.
10.5 x 9.2 x 5.3 cm. A VERY RICH, OLD-TIME and showy CABINET combination specimen from the famous Carn Brea Mine, Illogan, Cornwall. Lustrous microcrystals of wine-red cuprite and nests of sponge-like copper crystals dominate the crest of BOTH sides of the box-work, gray, sintered-like quartz matrix. This super, old and historic piece was mined in the 1840s-60s, according to the handwritten label accompanying the specimen. The Carn Brea Mine was formed in 1832 by the amalgamation of four older mines!
8.9 x 7.9 x 3.4 cm. Those of you who know about datolites know that they are really fought over by Michigan collectors. This is because they come in such a range of subtly pretty colors that the variety of specimens is endless, due to the numerous types of inclusions that give them their hues; so many people have a collection of datolites as a special sub-section of their collections. Unfortunately, they are not common. This is a BIG one, with a gorgeous rusty-red center (probably from hematite) - highly polished to bring out the beauty. If you look closely, you can see little inclusions of native copper around the rim.
7.0 x 6.7 x 5.7 cm. A STRIKING, OLD-TIME and RARE specimen from the famous Czar Shaft at Bisbee. Gorgeous and lustrous, bright red, calcite crystals are included with cuprite variety chalcotrichite and copper in numerous, very well-placed vugs on BOTH SIDES of the robust gossan matrix. The calcite crystals are found in clusters or as beautiful, isolated crystals to 6-7mm or so. Fabulous, desirable Bisbee material found at the 200 ft. level of the Czar Shaft prior to the mine closing in 1944, according to the accompanying dealer label. Ex. Dave & Emily Stoudt Collection.
1.7 x 1.1 x 0.5 cm. Lustrous, super-sharp, tenorite-coated copper crystals comprise this classic, KILLER, old-time thumbnail from the famous Phoenix Mine of Michigan. Ex. Seaman Museum Collection.
9.5 x 9 x 1.5 cm. From finds 3 years ago at the Itauz Mine, this specimen is quite exceptional both for its large size (VERY unusual for the Itauz, at least in good crystallized specimens) and overall aesthetics. This gorgeous specimen looks like some exotic stylized Asian dragon! VERY impressive for the locality and especially for a piece of such size.
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share specimen![Copper from Ontonagon Co., Michigan, USA [db_pics/mdpics/MD-165187a.jpg]](db_pics/mdpics/MD-165187a.jpg)
![Silver, Copper from Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-165241a.jpg]](db_pics/mdpics/MD-165241a.jpg)
![Copper from Ray Mine, Scott Mountain area, Mineral Creek District (Ray District), Dripping Spring Mts, Pinal Co., Arizona, USA [db_pics/mdpics/MD-166622a.jpg]](db_pics/mdpics/MD-166622a.jpg)
![Copper from Morenci Mine (Morenci pit; Phelps Dodge Morenci Mine; Morenci-Metcalf), Morenci, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA [db_pics/mdpics/MD-166782a.jpg]](db_pics/mdpics/MD-166782a.jpg)
![Copper, Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [db_pics/mdpics/MD-167109a.jpg]](db_pics/mdpics/m/MD-167109a.jpg)
![Copper from Corocoro, Pacajes Province, La Paz Department, Bolivia [db_pics/mdpics/MD-167117a.jpg]](db_pics/mdpics/MD-167117a.jpg)
![Copper from Chino Mine (Santa Rita Pit; Santa Rita Mine), Santa Rita, Santa Rita District, Grant Co., New Mexico, USA [db_pics/mdpics/MD-167836a.jpg]](db_pics/mdpics/MD-167836a.jpg)
![Copper from Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-168226a.jpg]](db_pics/mdpics/MD-168226a.jpg)
![Copper from Irish Mag Mine (Calumet and Arizona Mine), Calumet and Arizona group of claims (Calumet and Arizona Mining Company group of claims), Ramsey Canyon, Bisbee, Warren District, Mule Mt [db_pics/mdpics/MD-168234a.jpg]](db_pics/mdpics/MD-168234a.jpg)
![Copper from Irish Mag Mine (Calumet and Arizona Mine), Calumet and Arizona group of claims (Calumet and Arizona Mining Company group of claims), Ramsey Canyon, Bisbee, Warren District, Mule Mt [db_pics/mdpics/MD-168234b.jpg]](db_pics/mdpics/MD-168234b.jpg)
![Copper from Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-168743a.jpg]](db_pics/mdpics/MD-168743a.jpg)
![Cuprite, Copper, Quartz from Carn Brea Mine (incl. Tregajorran Mine), Carn Brea and Tincroft United Mine, Carn Brea area, Camborne - Redruth - St Day District, Cornwall, England, UK [db_pics/mdpics/MD-168758a.jpg]](db_pics/mdpics/MD-168758a.jpg)
![Cuprite, Copper, Quartz from Carn Brea Mine (incl. Tregajorran Mine), Carn Brea and Tincroft United Mine, Carn Brea area, Camborne - Redruth - St Day District, Cornwall, England, UK [db_pics/mdpics/MD-168758b.jpg]](db_pics/mdpics/MD-168758b.jpg)
![Datolite, Copper from Knowlton Mine, Mass City, Ontonagon Co., Michigan, USA [db_pics/mdpics/MD-169728a.jpg]](db_pics/mdpics/MD-169728a.jpg)
![Calcite, Cuprite (Var: Chalcotrichite), Copper from Czar Mine (Czar Shaft), Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-169778a.jpg]](db_pics/mdpics/MD-169778a.jpg)
![Calcite, Cuprite (Var: Chalcotrichite), Copper from Czar Mine (Czar Shaft), Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-169778b.jpg]](db_pics/mdpics/MD-169778b.jpg)
![Copper, Tenorite from Phoenix Mine, Phoenix, Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-169808a.jpg]](db_pics/mdpics/MD-169808a.jpg)
![Copper from Itauz Mine, Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan [db_pics/mdpics/MD-170083a.jpg]](db_pics/mdpics/MD-170083a.jpg)