Potassic-ferro-ferri-sadanagaite

Facts

Chemical formula

KCa₂Fe²⁺₃Fe³⁺₂(Si₅Al₃)O₂₂(OH)₂

Crystal system

Monoclinic

Mohs hardness

5.8

Elements in formula

Potassium, Calcium, Iron, Silicon, Aluminium, Oxygen, Hydrogen

Number of elements

7

IMA status

Redefined

Type locality

Ilmen Nature Reserve

Named after

Potassium

Colour

black

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3909493