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Mineral Specimens with Sphalerite
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13.0 x 7.3 x 7.0 cm. Lustrous, large, jet-black, stepped sphalerite crystals set on cabinet matrix covered with contrasting dolomite rhombs from the Baxter Springs area, Kansas of the Tri-State District. Sphalerites reach 5.6 cm. Ex. John Barlow and George Feist Collections.
7.0 x 5.2 x 4.3 cm. A beautiful locality specimen with sharp gemmy sphalerites to 6 mm on drusy, sparkling calcite, all atop large fat milky quartz points.
A BIG, brilliantly lustrous, colorful cluster atop contrasting crystallized quartz matrix, from a locality better known for spessartines. In fact, these gorgeous big sphalerites were actually mislabelled as andradite garnet by the Chinese dealer selling them. Minor contact damage to the small crystals and back faces on the large crystal, but complete on the display faces (main xl). 6.8 x 4 x 3 cm
13.5 x 6.1 x 5.9 cm. An old Tri-State combo specimen with three very large (4cm) compound crystals of sphalerite on a shard of matrix covered with crystals of dolomite, and a sprinkling of little chalcopyrites. Ex. Feist Collection.
9.2 x 7.8 x 3.3 cm. Sharp, isolated, lustrous sphalerite crystals (to 1 cm) on sparkling quartz background.
8.9 x 8.5 x 3.3 cm. This is a superb specimen where every one of the three species, sparkles brightly. The contrast, with the quartz vein winding over the sphalerite, and accented by golden siderite, is striking.
12.4 x 8.3 x 3 cm. A large plate of sparkling, very lustrous sphalerite from this classic old district, probably from the early to mid 1800s.
11.8 x 8.0 x 2.6 cm. Sharp, isolated sphalerites to 2 cm across sit nicely on clear, translucent fluorite crystals - a classic association for this old mid-1800s mining district.
13.0 x 12.8 x 7.0 cm. A sculptural, freeform cabinet combination specimen from the Richard Hauck quartz collection and the Deardorff Mine of the famous Southern Illinois Fluorite District. Lustrous, glassy, milky quartz comprises most of the piece. One side of the central stalk has purple fluorite cubes, while the other side has a scattering of lustrous, black sphalerite crystals.
6.1 x 5.0 x 4.9 cm. A striking, old-time specimen of iridescent, golden-brassy chalcopyrite coating two, sharp, intergrown sphalerite crystals. This is classic material from the famed Tri-State District of Southeastern Kansas and the John Anderson and George Feist Collections, # 1361. Probably circa mid-1900s.
10.4 x 6.2 x 5.5 cm. These sphalerites notable for deep, cherry-red gemminess. This crystal measures 1.6 cm. There are some smaller crystals scattered around on the quartz crystal-covered matrix as well.
5.9 x 4 x 3.2 cm. A sparkling, beautiful specimen with a drusy Quartz layer that coats the sharp Calcite. The edges have a very distinct translucent appearance which adds even more to the aesthetics of this piece. Classic Naica material from the mid to late 1980s.
14.3 x 9.0 x 7.8 cm. A superb combination specimen from Peru, combining long, slender, transparent quartz crystals with a silky surface luster with finely-articulated sphalerites on a hint of sparkly pyrite on the base matrix. Ex. Richard Hauck Collection.
4.5 x 3.5 x 2.3 cm. Greenockite is an uncommon cadmium sulfide. Apple-green microcrystals of greenockite richly cover the hummocky matrix of sphalerite crystals on this fine, old-time specimen from the famous Joplin Field of the Tri-State District. Ex. Underhill and Feist Collections.
From mining in the late 80’s, a plate of gemmy, lustrous sphalerite crystals to one cm (tight clusters to 1.5 cm) interspersed with galena cubes. A well-balanced and pretty specimen with unusually good lustre. 10 x 5.8 x 2.5 cm
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Rob Lavinsky, rob@irocks.com
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share specimen![Sphalerite, Dolomite from Baxter Springs, Picher Field, Tri-State District, Cherokee Co., Kansas, USA [db_pics/mdpics/MD-188360a.jpg]](db_pics/mdpics/MD-188360a.jpg)
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