Minerals identify

Know how to recognize them

Ferroselite

Selenide mineral

Orthorhombic ferroselite and its isometric dzharkenite are iron of general formula FeSe2 precipitated under reducing conditions in anoxic environments. They are a source of selenium in the Rocky Mountains where selenium occurrence is associated with Upper Cretaceous shale deposits.

In the frame of safety assessment calculations made for deep disposal of high-level radioactive waste, ferroselite and dzharkenite are also considered in geochemical calculations as one of the mineral phases limiting the solubility of Selenium-79

Identification

Color of mineral

Grey
White
Yellow

Mohs scale ( mineral hardness )

6

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Orthorhombic/Cu