mineral
Malachite-bearing Rock
Cu2CO3(OH)2
Hardness: 3.5 to 4 on the Mohs scale, Color: Green with brown matrix, Luster: Vitreous to dull, Crystal Structure: Monoclinic, Cleavage: Perfect in one direction, Specific Gravity: 3.6 to 4.0
- Hardness
- 3
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Physical properties
Hardness: 3.5 to 4 on the Mohs scale, Color: Green with brown matrix, Luster: Vitreous to dull, Crystal Structure: Monoclinic, Cleavage: Perfect in one direction, Specific Gravity: 3.6 to 4.0
Formation & geological history
Formed in the oxidation zones of copper ore deposits, typically associated with limestones and other carbonate-rich rocks.
Uses & applications
Used as an ore of copper, ornamental stone, for carving, and in jewelry.
Geological facts
Malachite has been used as a gemstone and green pigment for thousands of years, notably by ancient Egyptians.
Field identification & locations
Easily identified by its characteristic green color and effervescence in hydrochloric acid due to the carbonate content.
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