Chrysocolla

Chrysocolla is a minor ore of copper and is found in the oxidized zones of copper deposits. It is found associated with other copper minerals such as azurite and malachite.

Chrysocolla is a minor ore of copper and is found in the oxidized zones of copper deposits. It is found associated with other copper minerals such as azurite and malachite. This particular specimen is a chrysocolla pseudomorph after gypsum, a piece of gypsum that was later replaced by chrysocolla.

Chemical Formula:

Cu4H4Si4O10(OH)8

Mineral Class:

Cyclosilicates

Crystal System:

Orthorhombic

Symmetry:

Hardness:

2.5-3.5

Specific Gravity:

2.2

Cleavage:

None

Fracture:

Sectile

Color:

Pale blue, bluish-green

Streak:

Light green

Luster:

Vitreous, dull

Transparency:

Translucent/opaque

Common Habits:

Botryoidal, earthy, stalactitic

Other Properties:

Notable Localities:

Ural Mountains, Russia

Uses:

Mineral Specimen

Associated Minerals:

Other secondary copper minerals such as azurite, chalcedony, dioptase, malachite, quartz

Specimens:


Chrysocolla
Peru


Chrysocolla after Gypsum
Arizona