Formula: Pb2+2Pb4+O4 multiple oxide
Specific gravity: 9.05
Colour: Red to brownish red
Solubility: Soluble in hydrochloric acid with evolution of Cl2. Decomposed by nitric acid, with brown residue of PbO2
Minium occurs in the oxidised portions of lead ore deposits.
It is associated with native lead and galena at the Jay Gould Mine, Idaho, USA,
with galena, cerussite and iron oxides at Leadville, Colorado, USA,
with massicot and cerussite at the Santa Fe mine, Mexico, and with
native lead at Långban, Sweden.
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