mineral
Azurite
Cu3(CO3)2(OH)2
AI-generated identification · may be incorrectHardness: 3.5 to 4 on the Mohs scale, Color: Deep azure blue, Luster: Vitreous to dull, Crystal System: Monoclinic, Cleavage: Perfect in one direction, Specific Gravity: 3.77 to 3.83
- Hardness
- 3
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Physical properties
Hardness: 3.5 to 4 on the Mohs scale, Color: Deep azure blue, Luster: Vitreous to dull, Crystal System: Monoclinic, Cleavage: Perfect in one direction, Specific Gravity: 3.77 to 3.83
Formation & geological history
Formed in the oxidized zones of copper ore deposits where carbonated water reacts with copper minerals. Often found alongside malachite.
Uses & applications
Used as an ore of copper, a pigment in paints (historically known as mountain blue), gemstone, and highly sought after by mineral collectors.
Geological facts
Azurite has been used since antiquity as a blue pigment in paintings and for ornamentation. It frequently alters into malachite over time through a weathering process.
Field identification & locations
Easily identified in the field by its distinct, vibrant azure-blue color and softness. Found worldwide, with notable deposits in Morocco, France, Australia, and Arizona, USA.
