Halotrichite

Facts

Chemical formula

Fe²⁺Al₂(SO₄)₄·22H₂O

Crystal system

Monoclinic

Mohs hardness

1.5

Elements in formula

Iron, Aluminium, Sulfur, Oxygen, Hydrogen

Number of elements

5

IMA status

Grandfathered

Named after

hair

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q417278