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Measurements: 40 x 32 x 20 mm Description: A group of smoky quartz crystals with a few inclusions of schorl crystals, and some feldspar attached to the back of the specimen. There is a nick to one of the crystals and some damage to the back of the specimen. Weight of Specimen: 16 g Chemical
Composition: SiO2
(quartz)
Hardness on Mohs Scale: (quartz) 7 (feldspar) 6 - 6.5 (schorl) 7.5 Location: Erongo Mountains, Erongo Region, Namibia. Specimen Code: NER 024 US $ 15 .. . . . .
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