Measurements: 150 x 150 x 100 mm
Description:
A big catheral quartz specimen
consisting of a group of smoky quartz crystals (several double
terminated) sitting on a matrix of quartz with mica and feldspar.
The smoky quartz crystals have one nick of about 1½ cm, and a few smaller ones. The specimen displays well on a flat surface.
Weight of Specimen: 2.9 kg
Chemical Composition: SiO2
Hardness on Mohs Scale: 7
Location: Erongo mountains, Namibia.
Specimen Code: NAM 023
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