Ferro-actinolite

Facts

Chemical formula

☐Ca₂Fe²⁺₅Si₈O₂₂(OH)₂

Crystal system

Monoclinic

Mohs hardness

5.5

Elements in formula

Calcium, Iron, Silicon, Oxygen, Hydrogen

Number of elements

5

IMA status

Redefined

Named after

iron(II)

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3743205