Measurements: 59 x 16 x 15 mm
Description: A double terminated quartz crystal with partially exposed phantom on which a few small crystals grew, along with bits of feldspar. It is coated with iron oxide.
The specimen has a few small nicks.
Weight
of Specimen: 24 g
Chemical
Composition: SiO2 (quartz)
KAlSi3O8 (feldspar)
Hardness
on Mohs Scale: 7 (quartz)
6 - 6½
(feldspar)
Location:
Orange River area,
Northern Cape, South Afric
Specimen
Code: NC
021
R 65
...
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