Minerals identify

Know how to recognize them

Pyrrhotite

Mineral

Pyrrhotite is an iron sulfide with the formula Fe(1-x)S (x = 0 to 0.2). It is a nonstoichiometric variant of FeS, the mineral known as troilite, because the color is similar to pyrite and it is weakly magnetic. The magnetism decreases as the iron content increases, and troilite is non-magnetic.[page needed

Identification

Color of mineral

Bronze
Brown

Mohs scale ( mineral hardness )

3.5

The streak

Grey
Black

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Monoclinic