Measurements: 58
x 44 x 43 mm
Description:
A
specimen consisting of a nice azurite crystal, sitting on the edge
of
a small cavity of azurite
crystals,
all resting on a conglomerate matrix of azurite,
malachite and (what appears to be) a (?)feldspar clay stained with
traces
of copper oxide.
There is some damage to the crystals on the edge of the cavity, and a stable crack in the matrix.
Weight of Specimen:
91.5 g
Chemical Composition: Cu3(CO3)2(OH)2
(azurite)
Cu2+(CO3)(OH)2
(malachite)
Hardness on Mohs
Scale: (azurite) 3.5 – 4
(malachite) 3.5
- 4
Specimen
Code: NTS
009
US $ 40
| Home | Order Form |
