Prosopite


Composition: CaAl2(F,OH)8
Crystal System : Monoclinic
Colours: Colourless, white, grey, green
Lustre : Vitreous
Hardness (H) : 4.5
Specific Gravity (S.G) : 2.89
References: Gebhard (1999)

Distribution

Extremely rare. Second oxidation zone, 32 Level.

Occurrence

  • Supergene
  • 2nd Oxidation Zone

Paragenetic and General Notes

Prosopite occurs as radiating groups of transparent crystals to 1 mm (Gebhard, 1999) associated with quartz, siderite and tsumcorite (Von Bezing, 2007).