Gibbsite
Al(OH)₃
Oxides
Hardness —
· Monoclinic
H₆(Pb,Ca)₆(Te₄+O₃)₃(Te₆+O₆)₂ * 2H₂O
Discredited mineral (two phases, ottoite and plumbotellurite)
Named after Oliver Michael Boyer
Source: Wikidata
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