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Mineral Specimens with Galena
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10.8 x 5.3 x 5.0 cm. Gleaming, mirror-metallic octahedrons of galena on matrix, nicely isolated in patches with matrix providing contrast, from the classic Naica locality. Ex. Feist Collection.
8.5 x 5.9 x 5.0 cm. An astoundingly large and perfect cube of gleaming, metallic galena on matrix, from the Feist Collection. Decorating the surface of this superb crystal are some flat, gemmy light yellow calcites.
9.5 x 7.4 x 4.9 cm. A big, beautiful single crystal of galena, super complex and architectural no matter which way you look at it. It is a floater as well. Luster is better in person. One side shows really interesting hoppered growth. Ex. Consie Prince Collection.
10.7 x 7.5 x 5.5 cm. A very rare and unique combination specimen from the Viburnum Trend District. This showy, old-time specimen features glassy, jet-black bitumen (a "solid oil" or hydrocarbon material) scattered amongst a rich covering of lustrous, metallic-gray galena cubes and sphalerite crystals on a vuggy, two-sided matrix of silicified limestone coating with tiny, contrasting, colorless calcite rhombs. The back even features a couple of quartz needles, as a highlight. Ex. George Feist Collection.
7.2 x 4.7 x 4.6 cm. An excellent, very showy, old-time combination sulfide specimen from the Mullane Collection and an unknown mine in Gunnison County of Colorado. Several large, lustrous, golden-brassy, chalcopyrite crystals to 2.5 cm are nicely set in lustrous, black sphalerite crystals and massive, blocky, gray galena. There is some contacting on the sides, but this remains a very highly representative, showy and rich copper-zinc-lead ore specimen from a mineral-rich Colorado county.
11.3 x 6.7 x 6.5 cm. Chalcostibite is a rare copper, antimony sulfosalt. This excellent and very showy, 3-dimensional cabinet combination piece from Cavnic, Romania features shiny, gray metallic blades and needles of chalcostibite clusters richly scattered on lustrous sphalerite crystals and associated with a rich, preferential coating of sparkly, light gray dolomite rhombs and a bit of galena. Chalcostibite was never common at Cavnic and this major discovery was made in 1990.
4.8 x 4.0 x 2.7 cm. An old-time, highly unusually shaped galena specimen from the historic mines at Niederfischbach, Siegerland, Germany. This fine, old piece consists of a striking, complete all-around floret of sparkly, bubbly, botryoidal, grape-like galena. Smaller galena botryoids cover the thin crust of gossan matrix that the galena is attached to. For the locality and species, this is a super piece and is accompanied by an old label in German.
4.4 x 2.6 x 2.4 cm. A classic association from Naica, but in an unusual form. Here you have a large, glossy compound crystal of sphalerite, with unusual rounded galenas and blocky rhombs of cream-colored calcite. Ex. Jaime Bird Collection.
14.9 x 9.7 x 8.8 cm. This is a huge cluster weighing 4.4 pounds, of large, thick, robust pyrrhotites. The piece is complete and 360 degrees, all around. It has a very sharp geometry to the stacked hexagonal crystals, and a complex surface. The surface shows some alteration to, or perhaps ingrown, siderite and pyrite. But all tips are there, and the base is rimmed around by some contrasting metallic gunmetal-gray galena for accent. Ex. George Elling Collection.
4.7 x 4.2 x 1.7 cm. For one of the more common sulfides worldwide, Galena was not seen in great quantity from Tsumeb. This piece features one predominant silvery-grey colored cuboctahedron of Galena sitting atop cleaved Galena crystal matrix. Ex. Rob Smith Collection.
9.2 x 7.1 x 3.8 cm. This specimen has a great coverage of hundreds of prismatic, sharp, lustrous, translucent, yellow and reddish-orange Mimetite crystals on a heavy mound of Galena matrix. Ex. Rob Smith Collection.
4.1 x 3.9 x 2.9 cm. A glistening, silvery cube of galena with a calcite scalenohedron slanting across one of its faces, from Missouri. Note the natural bevels on the galena corners. If you look closely, you will see rough galena crystals modified to flat-topped octahedrons on this specimen.
7.0 x 4.7 x 3.8 cm. A very showy, two-sided combination specimen from the Krushev Dol Mine of the Madan District of Bulgaria. A "forest" of lustrous, lightly frosted, translucent quartz crystals to 3.5 cm "supports" what appears to be a fallen over complex, lustrous, metallic-gray, spinel-twinned galena crystal.
5.8 x 4.0 x 2.8 cm. An unusual pseudomorph/combination specimen from the famous West Camp, Santa Eulalia, Mexico. A showy cluster of anglesite pseudomorphing blocky galena crystals are richly dusted with sparkly, tan cerussite microcrystals. The large pseudomorph crystal is 2.7 x 2.6 x 1.6 cm. The backside of the piece shows the unaltered galena. Ex. Consie Prince Collection.
11.9 x 5.7 x 3.0 cm. A superb cabinet combination plate with very gemmy, golden-yellow sphalerite crystals, brassy chalcopyrite crystals and a few, scattered galena crystals from the small find a few years ago at the Commodore Mine at Creede, Colorado. Many of the highly lustrous, black-looking sphalerite crystals are, in fact, partially gemmy. The largest gemmy sphalerite crystal is 1.3 cm. Ex. Ed David Collection.
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Rob Lavinsky, rob@irocks.com
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