Rock Identifier
Malachite-stained Copper Ore (Cupriferous rock with secondary copper carbonates) — mineral
mineral

Malachite-stained Copper Ore

Cupriferous rock with secondary copper carbonates

AI-generated identification · may be incorrect

Hardness 3.5 to 4 on Mohs scale, vibrant green to bluish-green coloration, dull to earthy luster, monoclinic crystal system.

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Physical properties

Hardness 3.5 to 4 on Mohs scale, vibrant green to bluish-green coloration, dull to earthy luster, monoclinic crystal system.

Formation & geological history

Formed via weathering and oxidation of primary copper sulfide deposits in hydrothermal environments.

Uses & applications

Used as an ore for copper extraction, ornamental stone, and lapidary purposes.

Geological facts

The distinctive green staining is caused by secondary copper carbonate alteration known as malachite or chrysocolla.

Field identification & locations

Identified easily by its bright green coloration on host rock and positive reaction to acid tests depending on carbonate content.