Tsumeb is the Type Locality
Extremely rare. The type specimen is from the second oxidation zone.
- 2nd Oxidation Zone
Paragenetic and General Notes
Tsumgallite occurs on tennantite / germanite ore, with söhngeite and zincian siderite, as scaly mica-like aggregates less than 1 mm across. The individual thin, platy crystals do not exceed 40μm in size.
Previously designated as the unknown "Mineral GF" (Pinch and Wilson, 1977).