Minerals identify

Know how to recognize them

Delafossite

Oxide mineral

Delafossite is a copper with formula CuFeO2 or Cu1+Fe3+O2. It is a member of the delafossite mineral group, which has the general formula ABO2, a group characterized by sheets of linearly coordinated A cations stacked between edge-shared octahedral layers (BO6). Delafossite, along with other minerals of the ABO2 group, is known for its wide range of electrical properties, its conductivity varying from insulating to metallic. Delafossite is usually a secondary mineral that crystallizes in association with oxidized copper and rarely occurs as a primary mineral.

Identification

Color of mineral

Black

Mohs scale ( mineral hardness )

5.5

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Trigonal