Measurements: 27 x 23 x 20 mm
Description: A beautiful arrangement of prehnite, quartz and calcite crystals. There is only minimal damage to the bottom of the specimen.
This is a very high quality specimen.
Weight
of Specimen: 7.6 g
Chemical
Composition: Ca2Al2Si3O10(OH)2 (prehnite)
SiO2
(quartz)
CaCO3 (calcite)
Hardness
on Mohs Scale: (prehnite) 6-6.5
(quartz) 7
(calcite) 3
Location: Brandberg, Namibia.
Specimen Code: NBB 116
US $ 65
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