Measurements:
55 x 31 x 13 mm
Description: An
exceptional azurite crystal with bits of feldspar on it.
One of the small termination
faces (about 6 x 4 mm) has been sanded (possibly by the miner, trying
to hide a nick). The rest of the specimen has a few nicks and a large
contact mark on the lower section.
Weight
of
Specimen: 30.3
g
Chemical Composition:
Cu3(CO3)2(OH)2
(azurite)
KAlSi3O8 (feldspar)
Hardness
on Mohs Scale: (azurite) 3.5 – 4
(feldspar) 6 - 6.5
Location: Tsumeb,
Specimen
Code: NTS 019
US $ 75
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