Potassic-arfvedsonite
Potassic-arfvedsonite is an IMA-recognized mineral species in the silicate class, with the chemical formula KNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂.
It crystallizes in the monoclinic crystal system (space group C2/m). It is a member of the Amphibole structural group.
IMA symbol Parf, IMA status: approved, named in 2003.
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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