Magnesio-fluoro-arfvedsonite

Facts

Chemical formula

NaNa₂(Mg₄Fe³⁺)Si₈O₂₂F₂

Crystal system

Monoclinic

Mohs hardness

5.5

Elements in formula

Sodium, Magnesium, Iron, Silicon, Oxygen, Fluorine

Number of elements

6

IMA status

Redefined

Type locality

Vishnevye mountains, Ilmen Nature Reserve

Named after

Magnesium

Colour

grey

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3746850