Image Credit: Malcolm Southwood
Specimen Title
Tennantite subgroup (w. quartz)
Associated Minerals
quartz; undetermined
Principal Mineral
Size
Cabinet; 75mm
Location in the Mine
Undetermined
Provenance
Rühland, K.
Collection
Southwood, M.; MS1984.041
Entry Number
Specimen; TSNB939
Description
A druse of terminated, milky-white quartz crystals (to 10 mm) over a matrix of silicified dolostone with disseminated sulphide mineralisation. The quartz druse is studded with crystals (to 20 mm) of a tennantite subgroup mineral, both as individuals and as small aggregates. The tennantite faces are thinly encrusted with undetermined blue-green copper secondaries.
The tennantite is almost certainly tennantite-(Zn).
The specimen was purchased from Klaus Rühland in Windhoek, Namibia, in 1984.
