mineral
Azurite
Cu3(CO3)2(OH)2
AI-generated identification · may be incorrectHardness 3.5 to 4 on Mohs scale, deep azure blue color, vitreous to dull luster, monoclinic crystal system, and a light blue streak.
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Physical properties
Hardness 3.5 to 4 on Mohs scale, deep azure blue color, vitreous to dull luster, monoclinic crystal system, and a light blue streak.
Formation & geological history
Forms in the oxidized zones of copper ore deposits where carbonated water reacts with copper minerals.
Uses & applications
Used primarily as a copper ore, collector mineral, ornamental stone, and historically as a powdered pigment in paints.
Geological facts
Azurite frequently alters into malachite over time through a process of hydration, creating stunning blue-and-green pseudomorphs.
Field identification & locations
Easily identified in the field by its distinct deep blue color and effervescence when tested with hydrochloric acid.
