Plumboselite
Plumboselite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Pb₃O₂(SeO₃).
It crystallizes in the orthorhombic crystal system (space group Cmc2_1).
Key properties: Mohs hardness 2–3; specific gravity 7.814; White streak; Dull to adamantine luster; optically biaxial.
IMA symbol Pbs, IMA status: approved, named in 2010.
Found as a secondary mineral in the oxidized zone of a polymetallic sulfide deposit.
It is found associated with Clausthalite, smithsonite, mimetite, vaterite.
The name refers to the mineral’s essential chemical composition, plumbo (for lead) and sel (for selenite).
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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