Potassic-magnesio-fluoro-arfvedsonite

Facts

Chemical formula

KNa₂(Mg₄Fe³⁺)Si₈O₂₂F₂

Crystal system

Monoclinic

Mohs hardness

6.0

Elements in formula

Potassium, Sodium, Magnesium, Iron, Silicon, Oxygen, Fluorine

Number of elements

7

IMA status

Redefined

Named after

Potassium

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q18059147