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Measurements: 46 x 23 x 16 mm Description: An interesting arrangement of smoky quartz crystals, feldspar and pieces of schorl. One of the main quartz crystals has broken off and a bit of schorl grew over the break. The rest of the specimen has little damage. Weight of Specimen: 10.9 g Chemical
Composition: SiO2
(quartz)
Hardness on Mohs Scale: (quartz) 7 (feldspar) 6 - 6.5 (schorl) 7.5 Location: Erongo Region, Namibia. Specimen Code: NER 020 US $ 20 . . .
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