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Mineral Specimens with Spessartine
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10.6 x 6.7 x 4.2 cm. A couple dozen intensely gemmy, wine-red spessartine garnets with glassy luster shine on a wonderful contrasting stark white matrix of euhedral feldspar. The spessartines measure to just under one centimeter.
3.3 x 2.5 x 2.4 cm. A fine example of a garnet from a MAJOR NEW FIND! The full locality information for this deposit is near the town of Loliondo, close to Serengeti National Park and 7 km from the Kenyan border, W-NW of the north end of Lake Natron. It is closed to heavy traffic and on Maasai tribal lands. Some of these are extremely large, but they typically get less transparent as the size gets larger. These had quietly been emerging from a small prospect in remote Tanzania and hoarded for sale at the Tucson show. The crystals light up a pretty orangey-red color, similar to a Chinese scheelite, under good light. This crystal weighs 61 grams!
4.2 x 2.5 x 2.2 cm. A BEAUTIFUL, CLASSIC and OLD-TIME combination specimen from the famous Little Three Mine of San Diego County of a 1.0 cm gemmy and lustrous, orange spessartine garnet aesthetically attached to the side of a lustrous, jet-black schorl crystal with an etched termination. The schorl is exquisitely wrapped in contrasting, floral-like, bladed cleavelandite. This complete all-around beauty dates to the 1960s and is from the Norm Dawson Collection, owner and operator of the White Queen Mine from 1948-1992.
4.5 x 3.5 x 2 cm. A large floater crystal of spessartine from Brazil. It is shown here backlit (strongly) to emphasize not only the super gemminess through and through, but also the amazing architecturally stepped surfaces so distinctive of this find. This specimen is complete and undamaged, with the incredible terraces all the way around.
2.3 x 2.3 x 1.8 cm. A very fine single crystal of Spessartine resting on white albite matrix. The .9 cm crystal has excellent color, superb luster, and great trapezohedron crystal habit. It is just about a perfect garnet. Tim Blackwood Collection.
1.7 x 1.5 x 1.4 cm. A fine example of a garnet from a MAJOR NEW FIND! The full locality information for this deposit is near the town of Loliondo, close to Serengeti National Park and 7 km from the Kenyan border, W-NW of the north end of Lake Natron. It is closed to heavy traffic and on Maasai tribal lands. Some of these are extremely large, but they typically get less transparent as the size gets larger. The crystals light up a pretty orangey-red color, similar to a Chinese scheelite, under good light. This crystal weighs 11 grams.
6.4 x 5.5 x 3.4 cm. What a beautifully balanced and aesthetic specimen out of the collection of Marty Zinn! What makes this specimen special, I think, is that the matrix albite, instead of being a formless lump, is euhedral, with one of the flat faces forming the backdrop for the muscovites and spessartines. So they are presented in a form that is rare, with all the crystals on the same plane. The largest spessartine measures 1.4 cm across. Ex. Marty Zinn Collection.
11.1 x 9.4 x 6.8 cm. A LARGE plate of what is now "the" familiar Tongbei combo: a field of bright, flashy, gemmy little spessartines in combination with smoky quartz points on a stark white feldspar matrix. The large compound crystal of smoky quartz measures 4 cm in height. Beautiful!
2.8 x 2.7 x 2.3 cm. A fine example of a garnet from a MAJOR NEW FIND! The full locality information for this deposit is near the town of Loliondo, close to Serengeti National Park and 7 km from the Kenyan border, W-NW of the north end of Lake Natron. It is closed to heavy traffic and on Maasai tribal lands. Some of these are extremely large, but they typically get less transparent as the size gets larger. These had quietly been emerging from a small prospect in remote Tanzania and hoarded for sale at the Tucson show. The crystals light up a pretty orangey-red color, similar to a Chinese scheelite, under good light. This crystal weighs 19.5 grams, and has an odd elongated, diamond-like shape due to being a compound crystal.
7.5 x 6.5 x 5.5 cm. A cluster of gemmy and lustrous, deep cherry-red spessartine garnet crystals beautifully nestled on massive galena, chalcopyrite and rhodonite matrix from the famous North Mine at Broken Hill. Spessartines reach 1.3 cm on this piece.
6.8 x 4.2 x 2.4 cm. A rich plate of bright, glassy, gemmy spessartine garnets on feldspar matrix, from Tongbei. They are piled up 3-dimensionally.
16.4 x 8.9 x 4.4 cm. A rich specimen of Californian spessartine, with dozens of bright and lustrous, wine-red crystals sprinkled across the stark white contrasting matrix. Books of muscovite add a pretty accent.
4.1 x 3.9 x 3.1 cm. The full locality information for this deposit is near the town of Loliondo, close to Serengeti National Park and 7 km from the Kenyan border, W-NW of the north end of Lake Natron. It is closed to heavy traffic and on Maasai tribal lands. This big crystal weighs 117 grams.
2.9 x 2.2 x 2.0 cm. This piece features a few sharp, lustrous, gemmy, orange, striated dodecahedra of Spessartine associated with tan Orthoclase crystals and dark “Morion” Smoky Quartz crystals.
2.4 x 2.1 x 2.0 cm. Razor-sharp, highly lustrous, deep wine red color trapezohedral spessartine crystals (with minor dodecahedral modifications) sitting atop golden Muscovite blades.
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Rob Lavinsky, rob@irocks.com
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