Quartz, Calcite and Prehnite Group – NBB 075
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Measurements: 72 x 42 x 20
mm Description: A
neat group of clear quartz crystals, with a few small prehnite crystals
attached to its faces, together with calcite crystals on a small basalt
matrix.
The main quartz crystal has a lovely diamond shaped facet. The
larger quartz crystals have only very limited damage near the matrix,
while the
calcite and small quartz crystals also have very little damage. Weight
of Specimen: 45.5 g Chemical
Composition: SiO2 Hardness
on Mohs Scale: 7 Location: Specimen
Code:
NBB 075 US $ 85
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