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Measurements: 56 x 40 x 32 mm Description: A clear quartz crystal with two facets having a thin layer of chlorite just beneath the surface. The main crystal (26 x 09 x 08 mm) has minute nicks near the termination and a chip lower down. It shares a matrix of calcite and broken quartz with a few smaller crystals. Weight of Specimen: 47 g Chemical Composition: SiO2 Hardness on Mohs Scale: 7 Location: Brandberg, Namibia. Specimen Code: NBB 158 US $ 25
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