Minerals identify

Know how to recognize them

Ahlfeldite

Selenite mineral

Ahlfeldite ((Ni ·2H of secondary origin. It is named after Friedrich Ahlfeld (1892–1982), a German-Bolivian mining engineer and geologist. Its type locality is Virgen de Surumi mine, Pakajake Canyon, Chayanta Province , Potosí Department.

Identification

Crystal ( diaphaneity )

Monoclinic