Measurements:
50
x 50 x 43 mm
Description: A light amethyst quartz crystal sits on a piece of basalt, partly covered with very small calcite crystals.
The amethyst
crystal (32 x 17 x 17 mm) has a nick of 7 mm long on one of the
termination facets (visible image top right) and a flaw. The matrix has been trimmed on two sides, for better specimen display.
Weight
of Specimen: 86.2 g
Chemical
Composition: SiO2 (quartz)
CaCO3
(calcite)
Hardness
on Mohs Scale: 7 (quartz)
3 (calcite)
Location:
Specimen
Code:
NBB 168
US $ 35
.
.
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