Measurements:
55
x 29 x 23 mm
Description: A
lovely, small geode of small, gemmy azurite crystals. The azurite sit
on a type of rock matrix with duftite, malachite and (?)calcite.
Most
of the azurite crysals are undamaged, with a few having
nicks.
Weight of
Specimen:
36.0
g
Chemical
Composition: Cu3(CO3)2(OH)2
(azurite)
Cu2+(CO3)(OH)2
(malachite)
PbCu(AsO4)(OH)
(duftite)
CaCO3 (calcite)
Hardness
on Mohs Scale: (azurite)
3.5 – 4
(malachite)
3.5
- 4
(duftite)
4½
(calcite)
3
Location: Tsumeb, Northern Namibia.
Specimen Code: NTS 031
US $ 75
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