x 50 x 37 mm
Although quite a big area of the surface has a slightly dull coating, about two thirds of the crystal has quite good transparency, seen best when held against light.
for a large flaw, the crystal has very little damage; only a few small
Chemical Composition: SiO2 (quartz)
Hardness on Mohs Scale: (quartz) 7
Location: Erongo, Namibia.
Specimen Code: BARG 005
US $ 80.