Minerals identify

Know how to recognize them

Adelite

Adelite-descloizite group

The rare mineral , magnesium CaMgAsO4OH. It forms a solid solution series with the vanadium. Various transition metals substitute for magnesium and lead replaces calcium leading to a variety of similar minerals in the adelite - duftite group.

Adelite forms variably colored (blue, green, yellow and grey) crystals in the orthorhombic crystal system. The form is typically massive rating of 5 and a specific gravity of 3.73 to 3.79.

It was first described in 1891 from Värmland. Its name comes from the Greek word for indistinct.

Identification

Color of mineral

White
Grey
Yellow
Green
Pink
Brown

Mohs scale ( mineral hardness )

5

Luster ( interacts light )

Vitreous
Greasy

Crystal ( diaphaneity )

Orthorhombic