Minerals identify

Know how to recognize them

Pecoraite

Silicate mineral

Pecoraite is a nickel and a member of the serpentine group. It was named after geologist William Thomas Pecora. It is monoclinic and has a chemical composition of Ni3(Si2O5)(OH)4. It is associated with the weathering-and-or oxidation of meteorites or nickel sulfide minerals such as millerite. It is also found in altered ultramafic rocks Pecoriate is typically a green, lime green, or bluegreen mineral with a waxy, or earthy luster and a mohs hardness of 2.5. Common textural habits associated with Pecoraite are curved plates, spirals and tubes. It can also be granular and massive.

Identification

Color of mineral

Green
Blue
Yellow

Mohs scale ( mineral hardness )

2.5
3

The streak

Green

Luster ( interacts light )

Waxy

Crystal ( diaphaneity )

Monoclinic