Tsumeb is the Type Locality
Extremely rare. Upper portion of the first oxidation zone.
- 1st Oxidation Zone
Paragenetic and General Notes
Otavite occurs as white, greyish, or yellowish coatings, with minute,
rounded rhombohedral crystals, typically <0.5 mm, with a pearly
lustre, typically on smithsonite or on cerussite. Rosasite is commonly (though not always) present in the otavite paragenesis.
Otavite was the first new mineral described from Tsumeb (Schneider, 1906), and yet it remains one of the rarest and most elusive from the collector's point of view. Analysis is required for reliable identification and many specimens of "otavite" turn out to be calcite, dolomite, smithsonite or, at best, cadmian calcite or cadmian smithsonite.