Potassic-arfvedsonite

Facts

Chemical formula

KNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂

Crystal system

Monoclinic

Elements in formula

Potassium, Sodium, Iron, Silicon, Oxygen, Hydrogen

Number of elements

6

IMA status

Redefined

Type locality

Palitra pegmatite, Karnasurt mine, Kangerluarsuk fjord, Ilímaussaq, Kirovskii apatite mine

Named after

Potassium

Colour

black

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3909496