Libethenite

A rich vein of deep green Libethenites streak across the surface of this sparkling specimen. It is sawn on two sides. The Los Azules is an active copper mine with cuprite as the major ore. It is estimated to have 23 billion tons of copper. Ex Chester Lemansky.

Locality: Los Azules mine, Quebrada San Miguel, Copiapó, Copiapó Province, Atacama, Chile

Composition: copper phosphate hydroxide