Renierite


Composition: (Cu1+,Zn)11(Ge4+,As5+)2Fe4S16
Crystal System : Tetragonal; (pseudo-cubic)
Colours: Orange-brown
Lustre : Metallic
Hardness (H) : 4
Specific Gravity (S.G) : 4.4

  

Distribution

Common. Occurs widely in germanium-enriched portions of the hypogene (sulphide) ores.

Occurrence

  • Hypogene

Notable Finds

Renierite was first recognised at Tsumeb on 24 Level, at the very top of - or even just above - the second oxidation zone, as blebs of a bronze-brown sulphide in tennantite ore (Gebhard, 1999).

Paragenetic and General Notes

Sclar and Geier (1957) considered renierite to be an alteration product of germanite, forming rinds around germanite inclusions in tennantite, bornite, sphalerite and galena.