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Measurements: 58 x 40 x 13 mm Description: This is a most unusual flat group of crystals. It appears to be two main crystals joined back to back with a host of lesser crystals hitching a ride. The specimen is undamaged except at the bottom where it parted from its matrix. Image top right gives a side view of the specimen. Weight of Specimen: 25.5 g Chemical Composition: SiO2 Hardness on Mohs Scale: 7 Location: Vredendal Quarry, Western Cape, South Africa. Specimen Code: SWCV 014 US $ 60 .. .
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