Measurements: 48 x 11 x 11 mm
Description: A lovely gemmy, clear quartz crystal with a touch of amethyst colouring, and minute analcime crystals scattered on a small part of one of its shaft facets, and on three of its termination facets. Near the termination is a small group of extremely minute crystals (unsure what).
There are at least two freely moving bubbles. When tilted in light, a lovely rainbow can be seen.
The termination and narrow female termination point, appear to be perfect.
There are about three pressure marks (minute to small) on its shaft, around midline. The base of the crystal has broken off at a sharp angle, presumably because of a blow-out.
Weight of Specimen: 9.2 g
Chemical
Composition: SiO2
(quartz)
NaAl(Si2O6)•(H2O)
(analcime)
Hardness
on Mohs Scale:
(quartz)
7
(analcime)
5
Location: Brandberg, Namibia.
Specimen Code: NBB 189
US $ 25
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