Minerals identify

Know how to recognize them

Nichromite

Spinel group

Nichromite (Ni,Co,Fe)(Cr,Fe,Al)2O4 is a black cubic metallic mineral and member of the spinel Nichromite was originally reported from the Bon Accord nickel deposit in Barberton District Occurring naturally in a nickel deposit, nichromite is named for chromite with dominant nickel

The atomic arrangement of the spinel group is a commonly studied structure and characteristically has four closely packed oxygen atoms. The nickel atoms are organized corresponding to a "normal" spinel arrangement.

The mineral has only been found in the Bon Accord Nickel Deposit in South Africa where it is formed by replacing chromite and rimmed by trevorite

Identification

Color of mineral

Green
Black

Mohs scale ( mineral hardness )

6

The streak

Green

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Isometric