Measurements: 52 x 30 x 27 mm
Description: A quartz
crystal with minute dendrites (possibly hematite) on some surfaces.
When tilted in light, a small rainbow can be seen. There is a very
small moving bubble near the termination, and at least two minute
moving bubbles (the latter only visible with magnification).
The
only notable damage is at its base, where it parted from its matrix.
Total
Weight of Specimens: 49.0 g
Chemical Composition: SiO2 (quartz)
Hardness on Mohs Scale: (quartz) 7
Location: Brandberg, Namibia.
Specimen Code: NBB 155
US $ 50
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