This specimen has a crystalline layer of small
azurite
crystals. There is abundant zinc rich malachite as velvety tufts set on the
azurite.
Origin: Blue Jay Mine, Lemhi County, Idaho, Northwest USA
Sample size: 9 x 8 x 4 cm (top), 9.4 x 6 x 3.4 cm (2nd row), 9.3 x 6.7 x 3.5
cm (3rd row), 13.5 x 9 x 3.5 cm (4th/5th row), 6 x 3.7 x 2.8 cm (6th row), 7 x
3 x 1.8 cm (bottom)
This specimen of
dolomite
hosts a crystal of
azurite
replaced by malachite (pseudomorph) and then hit with a thin coating of
secondary
azurite mineralization. The right side of the crystal was sheared which
shows the complete replacement by malachite.
Origin: Tsumeb Mine, Tsumeb, Namibia, Africa
Origin: Tsumeb Mine, Tsumeb, Namibia, Africa
Sample size: 4.1 x 3.1 x 2.6 cm
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