Minerals identify

Know how to recognize them

Adamite

Arsenate mineral

Adamite is a zinc mineral. It is a mineral that typically occurs in the oxidized or weathered zone above zinc ore occurrences. Pure adamite is colorless, but usually it possess yellow color due to Fe compounds admixture. Tints of green also occur and are connected with copper substitutions in the mineral structure. Olivenite is a copper arsenate that is isostructural with adamite and there is considerable substitution between zinc and copper resulting in an intermediate called cuproadamite. Zincolivenite is a recently discovered mineral being an intermediate mineral with formula CuZn(AsO4)(OH). Manganese also substitute in the structure. An analogous zinc phosphate, tarbuttite, is known.

Identification

Color of mineral

Yellow
Brown
Red
White
Blue
Green

Mohs scale ( mineral hardness )

3.5

The streak

Green
White

Density ( specific gravity )

1.708
1.742
1.763

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Orthorhombic