Rare. First (?) and second oxidation zones.
- 1st Oxidation Zone
- 2nd Oxidation Zone
Paragenetic and General Notes
Plancheite occurs as whitish-blue, or bright-blue powdery crusts or coatings associated with dioptase (Bartelke, 1976). Less commonly, as radially-structured, spheroidal aggregates (to 1 or 2 mm).
Plancheite has been reported to form pseudomorphs after the following minerals: azurite (rare), cuprite (rare).