Formula: PbO simple oxide, paramorph of litharge
Specific gravity: 9.56
Colour: Yellow, sometimes with a reddish tint. Nearly colourless to pale yellow in transmitted light.
Massicot is a rare mineral of secondary origin associated with galena and
litharge. It may be an oxidation product of galena,
bournonite, boulangerite or other lead-bearing minerals and
it is also found as a sublimation product in fumeroles.
It is associated with cerussite, litharge,
antimony oxides and
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