Measurements:
45
x 20 x 13 mm
Description:
Two quartz crystals, of which one is a
semi-sceptre, have a few bits of feldspar attached.
When held against light,
one can see that the sceptre 'head' (as well as the other crystal's
termination) formed through secondary quartz growth at some stage after
the two crystals' initial growth.
The semi-sceptre has a large nick to the back of its termination.
Weight
of Specimen: 14.2
g
Chemical Composition:
SiO2
(quartz)
KAlSi3O8 (feldspar)
Hardness
on Mohs Scale: (quartz) 7
(feldspar)
6 - 6.5
Location: Northern Cape, South Africa.
Specimen
Code: BARG 019
US $ SOLD
.
.
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