mineral
Malachite with Quartz
Cu2CO3(OH)2 / SiO2
AI-generated identification · may be incorrectMalachite has a Mohs hardness of 3.5 to 4, vivid green color, and botryoidal crystal habits with a vitreous to silky luster. Associated quartz adds hardness of 7 and colorless crystalline structure.
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Physical properties
Malachite has a Mohs hardness of 3.5 to 4, vivid green color, and botryoidal crystal habits with a vitreous to silky luster. Associated quartz adds hardness of 7 and colorless crystalline structure.
Formation & geological history
Formed through the weathering of copper ore deposits in the oxidation zone, frequently in limestone host rocks.
Uses & applications
Used primarily as an ornamental stone, for gemstone carvings, and as a sought-after specimen for mineral collectors.
Geological facts
Malachite has been mined for thousands of years, historically used as a green pigment and for jewelry by ancient Egyptians.
Field identification & locations
Easily identified in the field by its distinct vibrant green color and effervescence when tested with dilute hydrochloric acid.
