Melanterite

Facts

Chemical formula

Fe²⁺SO₄·7H₂O

Crystal system

Monoclinic

Mohs hardness

2.0

Elements in formula

Iron, Sulfur, Oxygen, Hydrogen

Number of elements

4

IMA status

Grandfathered

Named after

ferrous sulfate heptahydrate

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q410267