Mackinawite

Facts

Chemical formula

(Fe,Ni)₉S₈

Crystal system

Tetragonal

Mohs hardness

2.5

Density

4.30 g/cm³

Elements in formula

Iron, Nickel, Sulfur

Number of elements

3

IMA status

Approved

Named after

Mackinaw mine

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q417794