Image Credit: Malcolm Southwood
Specimen Title
malachite
Associated Minerals
azurite; calcite
Principal Mineral
Size
Cabinet; 75mm
Location in the Mine
First oxidation zone; 14 Level
Provenance
Klein, W.
Collection
MGMH; 127341
Entry Number
Specimen; TSNB763
Description
A porous mass of malachite, essentially matrix-free, but with a few colourless gemmy calcite rhombs (to 3 mm) and very sparse microcrystals (circa 0.5 mm) of azurite on the reverse. Under magnification the malachite is seen to comprise minute acicular crystals forming aggregates, some of which are notably dendritic, suggesting they may have formed after native copper (?).
This was specimen 994 in the collection of Willem Klein, production manager at Tsumeb between 1916 and 1939. His catalogue records that it is from 14 Level at the bottom of the first oxidation zone.
