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