This specimen has a layer of powdery
chrysocolla which is host to a cluster of sharply crystallized cuprite
crystals. The cluster is 2.4 cm across. The cuprite has an octahedral form.
There are small crystals of
malachite
set on the cuprite.
Origin: Kolwezi, Katanga, DR Congo, Africa
Sample size: 7.9 x 7.2 x 3.3 cm
Cuprite with
malachite
Origin: Kombat Mine, Namibia
Sample size: 20 x 17 x 17 mm
This specimen of
calcite
has a rich zone of chalcoctrichite which is a hair-like variety of cuprite.
This variety of cuprite was found only once at the Tsumeb mine in the upper
oxidation zone between the 300 and 390 meter levels of the mine.
Origin: Tsumeb Mine ,Tsumeb, Namibia
Sample size: 6 x 4 x 3.5 cm
This specimen is mostly crystalline cuprite with some
malachite
Origin: Sverdlovsk Region, Ural Mts., Russia
Ex-Robert Ferguson Collection
Ex-Robert Ferguson Collection
Sample size: 3.3 x 3.3 x 2.5 cm
Cuprite on copper
Origin: Mountain City, Elko County, Nevada, U.S.A.
Ex. Keith Hayes collection
Sample size: 6.1 x 2.6 x 0.8 cm
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