mineral
Malachite with Quartz
Cu2CO3(OH)2 + SiO2
AI-generated identification · may be incorrectMohs hardness 3.5-4 for malachite and 7 for quartz; green and white color; vitreous to silky luster; monoclinic crystal system.
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Physical properties
Mohs hardness 3.5-4 for malachite and 7 for quartz; green and white color; vitreous to silky luster; monoclinic crystal system.
Formation & geological history
Formed through the weathering of copper ore deposits in oxidized zones, often alongside secondary quartz.
Uses & applications
Used as an ornamental stone, for gemstone carvings, and as a collector specimen.
Geological facts
Malachite has been mined for thousands of years as both a copper ore and a vibrant green pigment.
Field identification & locations
Identified by its characteristic green banding and effervescence in hydrochloric acid; found worldwide in copper-rich regions.
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