This specimen of
calcite
is covered with opaque crystals of mimetite to 1.7 cm in length. Several of
the crystals are doubly terminated.
ex - Washington A. Roebling Collection
ex - US National Museum Collection
ex - US National Museum Collection
This specimen of drusy
calcite
has scattered crystals of mimetite and small blebs of
malachite.
The largest mimetite crystals are 0.7 cm in length.
Origin: Tsumeb Mine, Tsumeb, Namibia, Africa
Sample size: 13 x 11.5 x 4.5 cm (top), 5.5 x 4.5 x 2 cm (2nd/3rd row), 13 x 7
x 5 cm (4th row), 6 x 5 x 2 cm (5th/bottom row)
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