Mineral Species
Prosopite
Type Locality
No
Composition
CaAl2(F,OH)8
Crystal System
Monoclinic
Status at Tsumeb
Believed valid
Abundance
Extremely rare
Distribution
Second oxidation zone
Paragenesis
Supergene
Entry Number
Species; TSNB287
General Notes
Prosopite was identified at Tsumeb by Keller and Innes (1986) who described radial aggregates of water-clear prismatic prosopite crystals (to 2 mm), with chisel-shaped terminations on granular dolomite with quartz and tsumcorite. The discovery was made at West 40 on 32 Level in the second oxidation zone. Keller and Innes (1986) proposed the following sequence:
quartz >> tsumcorite >> siderite >> prosopite
Associated Minerals
dolomite; quartz; siderite; tsumcorite
