Image Credit: Malcolm Southwood
Image Credit: Malcolm Southwood
Specimen Title
Malachite after azurite
Associated Minerals
cerussite; mimetite; smithsonite
Principal Mineral
Precursor Mineral
Size
Cabinet; 84mm
Location in the Mine
First oxidation zone
Provenance
Palache, C.
Collection
MGMH; 87514
Entry Number
Specimen; TSNB688
Description
A large, composite crystal of azurite completely replaced by malachite. A little matrix material adheres to the base of the crystal and appears to consists of sub-mm crystals of translucent yellow smithsonite, subordinate colourless cerussite (to 1.5 mm) and minute feathery sprays of pale yellow, acicular mimetite.
The specimen is from the collection purchased by Charles Palache during his visit to Tsumeb in December 1922, which dates it to the upper part of the first oxidation zone (i.e. 8 Level or above).
