Minerals identify

Know how to recognize them

Rosasite

Carbonate mineral

Rosasite is a carbonate mineral with minor potential for use as a zinc. Chemically, it is a copper zinc carbonate with a copper to zinc ratio of 3:2, occurring in the secondary oxidation zone of copper-zinc deposits. It was originally discovered in 1908 in the Rosas mine in Sardinia , and is named after the location. Fibrous blue-green rosasite crystals are usually found in globular aggregates, often associated with red limonite and other colorful minerals, but can be distinguished by its superior hardness.

Identification

Color of mineral

Blue
Green

Mohs scale ( mineral hardness )

4

The streak

Green
Blue

Density ( specific gravity )

1.672
1.796
1.811

Luster ( interacts light )

Silky
Dull
Vitreous

Crystal ( diaphaneity )

Monoclinic