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Mineral Specimens with Sphalerite
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8.8 x 5.8 x 5.4 cm. A sharp, lustrous, translucent sphalerite crystal with a golden-green hue to it, perched in classic Westfield matrix of quartz and prehnite. Sphalerite is rare for this locality and this is a beautiful specimen, as well. Ex. Philadelphia Academy of Sciences Collection.
6.8 x 5.4 x 5.4 cm. A huge, stunningly lustrous compound crystal of sphalerite, with associated calcite, from Mexico. Look at the sharpness of these highly reflective, twinned faces. Ex. Charles Hansen Collection.
12.2 x 9.9 x 4.3 cm. From the Feist Collection, a large and very rich old Tri-State combination piece. It is dominated by the sharp, chunky galenas, to 2 cm across. Sprinkled on the galenas are small, glittery golden chalcopyrites. And scattered amongst the field of smaller galenas on the matrix are coffee-colored "ruby jack" sphalerites.
17.4 x 12.1 x 8.8 cm. This is a very large (museum-sized), fine combination specimen. Both the sphalerite and the fluorite on this specimen are superb. The sphalerite has large, lustrous crystals. There is a pretty bloom of white baryte in one place on the sphalerite. Atop the sphalerite is a huge crystal of purple fluorite - 7 cm across the edge - translucent under strong light. Ex. Consie and Dalton Prince Collection.
5.2 x 4 x 3 cm. Here is a fine example of the purple fluorites the Elmwood Mine is famous for, on a matrix of sphalerite. There are a dozen little jewel-like crystals here, to 0.7 cm.
6.4 x 5.2 x 4.8 cm. This is a splendid example of the stunningly lustrous, large gem sphalerites found at Lechang a few years back that caused a big stir…with glowing orange-red color and complex, glassy faces. There are three crystals here, the largest measuring just under two centimeters. They sit on a gently-curved matrix covered with tiny quartz crystals.
5.7 x 5.1 x 3.3 cm. Another wonderful piece from the Elmwood Mine. This is a gemmy calcite twin, light golden color, perfectly set on a matrix of sphalerite with distinct crystals piled up underneath the twin.
10.1 x 8.4 x 4.7 cm. A fine, 4.5 cm, starburst cluster of splendent ruby-jack (or, reddish-colored) sphalerite crystals aesthetically set on plate of sparkly, drusy dolomite from the Elmwood Mine. This is essentially a complete-all-around and pristine cluster. Excellent material from this renowned locale. Old and classic.
10.0 x 5.7 x 3.5 cm. A cluster of wonderful purple fluorite cubes piled on a matrix of massive sphalerite, from the Elmwood Mine. The crystals measure to 1.7 cm; there are contacts only around the periphery. The crystals have fine transparency and pretty, silky faces. You can see some small red sphalerites sprinkled here and there. The matrix is massive sphalerite.
6.7 x 5.1 x 3.5 cm. A rare, superb combination specimen of many sceptered quartz crystals dominating the skyline and beautifully complimented with contrasting, sharp lustrous sphalerite crystals. Sceptered quartz from the famous Alimon Mine of Huaron, Peru is very rare and this is an exceptional specimen from the locale from the Dr. Eugene Sensel and George Elling Collections. The note on the back of the Sensel label states that he bought the piece in 1988 from Dick Hauck.
23.0 x 11.3 x 9.0 cm. An impressive cabinet specimen from the famous and now-closed Elmwood Mine. Three, lustrous, partially gemmy, purple fluorite cubes to 3.6 cm are set on a solid, 3-dimensional matrix of sharp, lustrous, black sphalerite crystals. Some corners of the fluorite cubes are beautifully gemmy, with yellow tinting and sharp edge phantoms. Ex. Consie Prince dealer stock, put away in the 1970s.
6.6 x 5.2 x 3.2 cm. A superb cluster of at least eight well-defined Pyrrhotite crystals resting on a matrix of excellent Sphalerite crystals and crystalline-to-massive Galena. The largest Pyrrhotite is 2.8 cm across with excellent luster and striations. The habit is fantastic, and to have the main Pyrrhotite sitting up on matrix in such an unusually isolated manner creates incredible aesthetics for this piece.
8.0 x 6.2 x 5.4 cm. From a zinc-mining operation in Borieva comes this huge and very sharp crystal of sphalerite, measuring 6 cm in each direction. It sits on a small portion of sulfide matrix, and is complete all the way around. There are sharp, lustrous, flashing faces everywhere. We shot the crystal under strong light so you can see that it is a transparent coffee-to-red color through and through. Ex. Nowakowski Collection.
6.2 x 4.4 x 3.0 cm. Transparent crystals of fluorite with beautiful internal zoning: golden cores with purple exteriors, with a sharp thin band of very dark purple running through the lighter purple. Intergrown with the fluorites are crystals of wine-red sphalerite.
12.5 x 6.8 x 3 cm. Nagyagite is one of those old European rarities that are both mineralogically and historically interesting. This is a very large, rich plate with freestanding (unetched from calcite) crystals to 4mm of this very rare species, from its type locality, richly scattered over a matrix composed of sphalerite with decorative pale pink rhodochrosite accent. It is important that this has not been etched out from calcite as with so many nagyagite specimens, as that preparation method changes the natural patina on the surface of the crystals. These are rather robust, stubby crystals, nicely interspersed with rhodochrosite aggregates on ore matrix. Ex. Dr. Werner Paar Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Sphalerite from Lane & Sons Traprock quarries, Westfield, Hampden Co., Massachusetts, USA [db_pics/mdpics/MD-199685a.jpg]](db_pics/mdpics/MD-199685a.jpg)
![Sphalerite from Lane & Sons Traprock quarries, Westfield, Hampden Co., Massachusetts, USA [db_pics/mdpics/MD-199685b.jpg]](db_pics/mdpics/MD-199685b.jpg)
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![Sphalerite, Quartz from Lechang Mine, Lechang Co., Shaoguan Prefecture, Guangdong Province, China [db_pics/mdpics/MD-203098b.jpg]](db_pics/mdpics/MD-203098b.jpg)
![Calcite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-203102a.jpg]](db_pics/mdpics/MD-203102a.jpg)
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![Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-203184b.jpg]](db_pics/mdpics/MD-203184b.jpg)
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![Pyrrhotite, Sphalerite, Galena from Stari Trg Mine, Trepča complex, Trepča valley, Kosovska Mitrovica, Kosovo [db_pics/mdpics/MD-206063a.jpg]](db_pics/mdpics/MD-206063a.jpg)
![Sphalerite from Borieva mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria [db_pics/mdpics/MD-206331a.jpg]](db_pics/mdpics/MD-206331a.jpg)
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![Nagyágite, Rhodochrosite, Quartz, Sphalerite from Sacarîmb (Sãcãrâmb; Szekerembe; Nagyág), Hunedoara Co., Romania [db_pics/mdpics/MD-206843b.jpg]](db_pics/mdpics/MD-206843b.jpg)
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