Minerals identify

Know how to recognize them

Brassite

Arsenate mineral

Brassite is a rare arsenate mineral with the chemical formula Mg(AsO3OH)·4(H2O). It was named brassite, in 1973, to honor French chemist R`ejane Brasse, who first synthesized the compound. The type locality of the Czech Republic

It occurs as an alteration of magnesium carbonate minerals by arsenic bearing solutions. It occurs associated with pharmacolite , picropharmacolite , haidingerite, native arsenic, realgar

Identification

Color of mineral

White

Density ( specific gravity )

1.531
1.546
1.562

Luster ( interacts light )

Silky
Dull

Crystal ( diaphaneity )

Orthorhombic