Polished Malachite Mineral Egg - DR Congo - Decorative Minerals 4.7 cm / 121g / BC910

Malachite belongs to the carbonate group. It contains copper, carbon, oxygen, and hydrogen. Its chemical formula is Cu2CO3(OH)2.

Its hardness is greater than 3.5/10 and its density is greater than 3.9 (1 for water). The line on porcelain is light green.

It usually occurs in massive form or in radiating crystals. This mineral is often associated with Azurite.

Malachite has been used as a pigment since ancient times. Its color is a deep green. When polished, malachite reveals beautiful patterns, most often consisting of concentric circles in different shades of green.