Paganoite
Paganoite is an IMA-recognized mineral species in the arsenate class, with the chemical formula NiBi³⁺O(AsO₄).
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: specific gravity 6.715; Pale orange-brown streak; Adamantine luster.
IMA symbol Pgn, IMA status: approved, named in 1999.
Formed from the breakdown of primary nickeline and native bismuth.
It is found associated with Aerugite, xanthiosite, rooseveltite, quartz, nickeline, bismuth, bunsenite.
The mineral was named to honor amateur mineralogists Renato (b. 1938) and Adriana (b. 1939) Pagano of Cinisello, Milan, Italy, for their long-standing service to the European mineralogical community.
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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