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Measurements: 87 x 58 x 21 mm Description:
Quartz and calcite crystals share a matrix of mixed minerals with
prehnite and epidote. About three of the very small quartz crystals have
reddish hematite specks and threads in them. Damage
is limited to a few minute to very small nicks to the crystals, and damage to
the edges of the specimen. Weight
of Specimen: 84.2 g Chemical Composition: SiO2 (quartz) Hardness on Mohs
Scale: (quartz)
7 Specimen Code: BARG 025 US $ 45
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