Mineral Species
Freedite
Type Locality
No
Composition
Pb8Cu1+(As3+O3)2O3Cl5
Crystal System
Monoclinic
Status at Tsumeb
Questionable
Entry Number
Species; TSNB136
General Notes
The occurrence of freedite at Tsumeb was first reported by Bowell and Mocke (2018) as "… aggregated, radial forms of yellow monoclinic crystals with vitreous lustre…[forming]… micro-crusts on Tennantite and Dolomite with minor Galena". The specimen (Geological Survey of Namibia # 7766) is attributed to the West 40 Stope on 33 Level. The means of identification is not stated, although an SEM image suggests that it was probably by semi-quantitative EDS.
The occurrence of freedite at Tsumeb is considered questionable pending further information.
Associated Minerals
dolomite (?); galena (?); tennantite-(Zn) (?)
