mineral
Malachite Copper Ore
Cu2CO3(OH)2
AI-generated identification · may be incorrectMohs hardness of 3.5-4, vibrant green to dark green color, vitreous to dull luster, monoclinic crystal system, and specific gravity of 3.6-4.0.
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Physical properties
Mohs hardness of 3.5-4, vibrant green to dark green color, vitreous to dull luster, monoclinic crystal system, and specific gravity of 3.6-4.0.
Formation & geological history
Forms in the weathering zone of copper ore deposits as a secondary mineral through the alteration of copper sulfides.
Uses & applications
Used as an ornamental stone, for carving, in jewelry, and historically as a green pigment.
Geological facts
Malachite often pseudomorphs after azurite, replacing the blue mineral while retaining its crystal shape.
Field identification & locations
Identified by its characteristic green color and effervescence in hydrochloric acid; found worldwide including regional occurrences in Taiwan's metamorphic belts.
