Aurichalcite

Aurichalcite is soft, monoclinic, copper and zinc bearing mineral. It forms a soft, scaly, greenish-blue crust in oxidized zones of copper-zinc ore deposits. It is considered to be a guide or indicator of zinc ore.

Type

Mineral

Mineral Classification

Carbonate

Chemical Formula

4[(Zn,Cu)5(CO3)2(OH)6]

Streak

very light blue-green

Mohs Hardness

2-2.5

Crystal System

Monoclinic

Color

blue-green and light-blue

Luster

Pearly, silky

Fracture

Uneven

Description

Aurichalcite is soft, monoclinic, copper and zinc bearing mineral. It forms a soft, scaly, greenish-blue crust in oxidized zones of copper-zinc ore deposits. It is considered to be a guide or indicator of zinc ore.

Uses

Of value to scientists and collectors.