x 44 x 43 mm
specimen consisting of a nice azurite crystal, sitting on the edge
a small cavity of azurite
all resting on a conglomerate matrix of azurite,
malachite and (what appears to be) a (?)feldspar clay stained with
of copper oxide.
is some damage to the crystals on the edge of the cavity, and
a stable crack in the matrix.
Weight of Specimen:
Chemical Composition: Cu3(CO3)2(OH)2
Hardness on Mohs
Scale: (azurite) 3.5 – 4
Location: Tsumeb, Northern Namibia.
US $ 40