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Mineral Specimens with Sphalerite
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7.6 x 5.5 x 2.6 cm. An EXCELLENT and AESTHETIC combination plate from the famous Commodore Mine at Creede, Colorado. VERY GEMMY and LUSTROUS, twinned, olive-green sphalerite crystals to 1.4 cm are RICHLY scattered on sulfide matrix and are nicely accented by 5 blocky, matte-gray galena crystals and a couple of brassy chalcopyrite crystals. A small lot of these was offered at Tucson a few ago and they quickly disappeared.
9.4 x 7.2 x 2.9 cm. An excellent and showy, old-time English combination plate of glassy, light lavender, interpenetrating fluorite cubes richly covering limestone matrix and nicely accented by chalcopyrite-covered sphalerite crystals from the famed ore fields in Derbyshire. The chalcopyrite microcrystals have a nice, golden iridescence and are on both the sphalerite and fluorite. This old-timer comes from an old European collection, where everything dates to the 1800s. This whole collection had myriad old materials, though I cannot name the owner, and was well known in Europe. Accompanied by an old German label. A pristine old-timer.
7.1 x 4.1 x 2.5 cm. I remember that these were some of the first Sphalerites to come out of China about 10 years ago, and the color is amazing. This specimen feature group of sharp, lustrous, gemmy, RICH red-orange color modified crystals of Sphalerite on Quartz matrix. When these crystals are backlit, the color they exhibit is epic, and truly doesn't look quite like any other mine in the world, especially considering it's a transparent sulfide! There aren't many localities producing gem quality Sphalerite these days, and these specimens from Shizhuyuan are becoming more and more difficult to find. Ex. Brian Kosnar.
4.8 x 3.8 x 2.8 cm. The Camp Bird mine near Ouray, Colorado is one of the most classic of all the Colorado ore body localities. It is renowned for its superb Chalcopyrite specimens, exhibiting some of the finest twins for the species extant. This specimen features dozens of sharp, splendent, metallic, brassy-gold colored twinned crystal of Chalcopyrite with associated lustrous black Sphalerite. This is a superb Chalcopyrite from this most classic of San Juan localities. These specimens are impossible to obtain these days, and are regarded among Colorado collectors as some of the best from the state. This piece came to Rich Kosnar from noted Colorado collector, George Robertson.
5.7 x 4.2 x 3.7 cm. Intergrown, lustrous and translucent, orange colored crystals of sphalerite have formed rosettes, reaching 2.75 cm across. Both the luster and color are superb. Ex. Carnegie Museum Collection.
6.9 x 5.0 x 2.8 cm. Splendent, well formed, black crystals of sphalerite, to 1.4 cm across, nearly cover the entire matrix of this specimen. From the collection of James E. Moresby White. Ex. Carnegie Museum Collection.
7.8 x 6.8 x 3.0 cm. Lustrous, tetrahedral sphalerite crystals are richly scattered on limestone matrix covered with glassy, light purple fluorite cubes on this fine old-time combination piece from England. The fluorite cubes resemble the previously described Derbyshire piece and we believe this piece to be from the same area. This old-timer comes from an old European collection, where everything dates to the 1800s. This whole collection had myriad old materials, though I cannot name the owner, and was well known in Europe. Accompanied by an old German label.
9.5 x 8.0 x 6.0 cm. An imposing specimen of totally gemmy, bi-colored, light sea-green and colorless, cuboctahedral fluorite crystals. Crystals reach 4.5 cm. Some crystals have distinct, stepped-growth faces and the piece is nicely accented by a bit of sphalerite. Many of the cuboct crystal faces are lightly frosted, but some are water-clear, giving a neat television-like view in to the crystal interior. From the recent find at Naica.
5.8 x 4.9 x 2.5 cm. Deep coffee-colored crystals of sphalerite, to over one centimeter, with flashy, lustrous faces - with little cream-colored calcites. From the well-known California collection of Charles Hansen.
14.6 x 8.2 x 5.4 cm. A rare South Dakota quartz cluster from this old mine. Contacted a bit at both ends, but mostly complete and really quite a striking 3-dimensional cluster. Ex. Richard Hauck Collection.
7.6 x 5.8 x 4.8 cm. A classic and aesthetic combination specimen from the famous Mid-Continent Mine of the Tri-State District. A 6.2 cm, lustrous and translucent, frosted, golden-amber calcite scalenohedron is jauntily attached to silicified limestone matrix covered with sphalerite and a couple of sharp galena cubes. Pristine, old material from the George Feist Collection, #2824.
6.7 x 3.6 x 3.5 cm. This BIG octahedron of rare and sought-after pink fluorite (2.5 cm along the edge) has a rough look to it, but it is not from etching or contact: what you are seeing is reflection from thousands of micro-faces, sparkling back at you, on the main face surfaces. The interior is actually gemmy. This big crystal sits on a bed of sphalerite, which in turn is on a matrix of crystallized and massive pyrite. From a famous series of finds in the 1980s, and long in the collection of Dan Belsher who dealt a lot in Peruvian minerals at the time.
6.7 x 4.4 x 2.7 cm. A specimen of solid sphalerite, with very deep green/amber color, crystallized on the surface with lustrous crystals to 0.7 cm. From the collection of noted California collector Charles Hansen.
4.4 x 3.4 x 2.9 cm. Here is something really unusual and stunning for a Tri-State collector - a coating of iridescent chalcopyrite has been deposited on a cluster of large (to 2.5 cm) sphalerites, isolated on a contrasting dolomite matrix. Ex. George Feist collection.
22.5 x 15.3 x 1.2 cm. This is a large, striking slab of banded minerals from Poland we acquired from the collection of Dave Stoudt, who was stationed in Poland for a decade and was able to buy from miners and dealers during his time there. It is a slice through essentially a boulder of alternating bands of three different minerals that were laid down in successive layers, similar to the way agate gets its bands, but with an exotic mix of minerals here rather than just quartz (as with agate).
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Rob Lavinsky, rob@irocks.com
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share specimen![Sphalerite, Galena, Chalcopyrite from Commodore Mine, Amethyst Vein, Creede District, Mineral Co., Colorado, USA [db_pics/mdpics/MD-157331a.jpg]](db_pics/mdpics/MD-157331a.jpg)
![Fluorite, Sphalerite, Chalcopyrite from Derbyshire, England, UK [db_pics/mdpics/MD-157394a.jpg]](db_pics/mdpics/MD-157394a.jpg)
![Sphalerite from Shizhuyuan Mine, Dongpo ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-157590a.jpg]](db_pics/mdpics/MD-157590a.jpg)
![Sphalerite from Shizhuyuan Mine, Dongpo ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-157590b.jpg]](db_pics/mdpics/MD-157590b.jpg)
![Chalcopyrite, Sphalerite from Camp Bird Mine, Ouray, Sneffels District (Mount Sneffels District), Ouray Co., Colorado, USA [db_pics/mdpics/MD-157595a.jpg]](db_pics/mdpics/MD-157595a.jpg)
![Sphalerite from Kangjiawan Pb-Zn-Ag-Au deposit, Shuikoushan ore field, Changning Co., Hengyang Prefecture, Hunan Province, China [db_pics/mdpics/MD-158389a.jpg]](db_pics/mdpics/MD-158389a.jpg)
![Sphalerite from Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-158450a.jpg]](db_pics/mdpics/MD-158450a.jpg)
![Sphalerite, Fluorite from Derbyshire, England, UK [db_pics/mdpics/MD-158531a.jpg]](db_pics/mdpics/MD-158531a.jpg)
![Sphalerite, Quartz from Příbram, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic [db_pics/mdpics/MD-158782a.jpg]](db_pics/mdpics/MD-158782a.jpg)
![Quartz, Bournonite, Pyrite, Sphalerite from Homestake Mine, Lead District, Lawrence Co., South Dakota, USA [db_pics/mdpics/MD-159833a.jpg]](db_pics/mdpics/MD-159833a.jpg)
![Calcite, Sphalerite, Galena from Mid-Continent Mine, Treece, Picher Field, Tri-State District, Cherokee Co., Kansas, USA [db_pics/mdpics/MD-160564a.jpg]](db_pics/mdpics/MD-160564a.jpg)
![Fluorite, Sphalerite, Pyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-160706a.jpg]](db_pics/mdpics/MD-160706a.jpg)
![Sphalerite from Quiruvilca Mine (La Libertad Mine; ASARCO Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru [db_pics/mdpics/MD-160713a.jpg]](db_pics/mdpics/MD-160713a.jpg)
![Chalcopyrite, Sphalerite from Tri-State District, Cherokee Co., Kansas, USA [db_pics/mdpics/MD-160727a.jpg]](db_pics/mdpics/MD-160727a.jpg)
![Marcasite, Galena, Sphalerite from Olkusz, Olkusz District, Małopolskie, Poland [db_pics/mdpics/MD-162485a.jpg]](db_pics/mdpics/MD-162485a.jpg)