Measurements: 50
x 18 x 17 mm
Description: A phantom quartz crystal with dark smoky interior and slightly pitted outer layer, exposing bits of feldspar, probably the cause of the white layer inside.
The
specimen has only very small nicks and a small pressure mark near its
base.
Weight
of Specimen: 24.5
g
Chemical
Composition: SiO2
(quartz)
KAlSi3O8 (feldspar)
Hardness
on Mohs Scale: (quartz) 7
(feldspar)
6 - 6.5
Location:
Specimen
Code: BARG 062
US $ 16
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