MINIUM
MINIUM Minium – Pb3O4 – is a very rare oxide, a secondary mineral of lead. It participates in the secondary mineral assembly of polymetallic ores, but is never the main ore mineral. Macroscopically, it can be confused with litharge (tetragonal PbO, also very red) and with powdery cinnabar (HgS). As it contains lead, it is […]