Potassic-magnesio-fluoro-arfvedsonite
A potassium-, magnesium- and fluorine-rich arfvedsonite amphibole first found on the Canadian Shield.
Intro adapted from Wikipedia (CC BY-SA).
Potassic-magnesio-fluoro-arfvedsonite is an IMA-recognized mineral species in the silicate class, with the chemical formula KNa₂(Mg₄Fe³⁺)Si₈O₂₂F₂.
It crystallizes in the monoclinic crystal system (space group C2/m). It is a member of the Amphibole structural group.
IMA symbol Pmfarf, IMA status: approved, named in 1985.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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