Minerals identify

Know how to recognize them

Daubréeite

Oxide mineral

For the iron chromium sulfide mineral see Daubréelite

Daubréeite is a rare bismuth mineral with formula BiO(OH,Cl). It is a creamy-white to yellow-brown, soft, earthy clay–like mineral which crystallizes in the tetragonal crystal system group.

It was first described for an occurrence in the Constanicia mine, Tazna It was named for French mineralogist Gabriel Auguste Daubrée At the Tanza location it occurs as a secondary mineral formed by the oxidation. It occurs with clay minerals In addition to its discovery location it has also been reported from the Tintic District in the East Tintic Mountains , Utah; in the Josephine Creek District of Josephine County, Oregon ; in the Manhattan District of Nye County, Nevada, Italy

Identification

Color of mineral

White
Grey
Yellow
Brown

Mohs scale ( mineral hardness )

2
2.5

Density ( specific gravity )

2.15
1.91

Luster ( interacts light )

Greasy
Silky

Crystal ( diaphaneity )

Tetragonal