Measurements:
35
x 20 x 10 mm
Description:
A quartz crystal with light amethyst colouring in its upper
part, shares a small basalt matrix with very small, drusy, quartz
crystals.
The
main crystal's termination appears to have no damage, but the outer
side of its bottom is damaged, and there is a pressure mark towards the
middle.
Weight of Specimen:
5.8 g
Chemical
Composition: SiO2 (quartz)
Hardness on Mohs
Scale: (quartz) 7
Location:
Specimen Code: NBB 236
US $ 15
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