Erthyrite

The association of this mineral with other cobalt minerals and its pink color are usually sufficient to distinguish it from all other minerals. It occurs as a secondary mineral in the oxidation zone of some Ni-C0-As mineral deposits but has no economic importance. It is used as a guide to other cobalt minerals and associated native silver. It was named in 1832 by Francois Sulpice Beaudant from the Greek word for “red”.

Mineral Photos courtesy of R.Weller/Cochise College