Minerals identify

Know how to recognize them

Botallackite

Halide mineral

Botallackite, chemical formula Cu2(OH)3Cl is a secondary copper mineral at the Botallack Mine , Cornwall with atacamite and clinoatacamite  [Wikidata

Botallackite crystallises in the monoclinic crystal system. It is mountain-green to green in colour, with one distinct to good cleavage

Identification

Density ( specific gravity )

1.775
1.8
1.846

Crystal ( diaphaneity )

Monoclinic