Crystallized Malachite and Azurite - Morocco - crystal minerals 8 cm / 85g / BL493

Malachite belongs to the carbonate group. It contains copper and carbon. Its chemical formula is Cu2CO3(OH)2.
Its hardness is greater than 3.5/10 on the Mohs scale (10 for diamond) 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 since ancient times as a pigment. Its color is a deep green.
The name Malachite comes from the Greek word malakhé which means mauve (the color of the plant's leaves).

AZURITE belongs to the carbonate group and contains copper and carbon. Its chemical formula is Cu3(CO3)2(OH)2.
AZURITE occurs in several forms, massive, coated or crystallized with tabular, prismatic or lamellar crystals. It is often found associated with Malachite.
Azurite's hardness is greater than 3.5/10 on the Mohs scale (10 for diamond) and its density is 3.8 (1 for water). The line on porcelain is blue.
The color of AZURITE is blue to blue-black and was used in the Middle Ages as a blue pigment.
Its name comes from Persian.