Tsumeb is the Type Locality
Extremely rare. The type specimen is from 28 Level, E.49 Stope, in the second oxidation zone.
- 2nd Oxidation Zone
Paragenetic and General Notes
Occurs as green, transparent microcrystals, in botryoidal structures to 3 mm, lining a vug in hydroxylapatite which is coloured black with manganese oxides which occasionally include some pseudomalachite. The botryoids comprise alternating sequences of microcrystalline conichalcite, hermannroseite, hydroxylapatite and whitlockite (Von Bezing et al., 2014). The mean size of individual hermannroseite crystals is less than 1 micron!