mineral
Copper Ore (Malachite and Azurite stained rock)
Cupriferous rock containing secondary copper carbonates
Hardness varies between 3.5 to 4 for the copper minerals, color shows earthy browns mixed with distinct vibrant green patches (malachite) and minor blue traces, luster is dull to earthy, specific gravity around 3.8 to 4.0
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Physical properties
Hardness varies between 3.5 to 4 for the copper minerals, color shows earthy browns mixed with distinct vibrant green patches (malachite) and minor blue traces, luster is dull to earthy, specific gravity around 3.8 to 4.0
Formation & geological history
Formed in the oxidized zones of copper ore deposits through the weathering and alteration of primary copper sulfide minerals, interacting with carbonate-rich water.
Uses & applications
Source of copper metal extraction, occasionally used in low-grade lapidary work or as a mineral specimen for educational and collecting purposes.
Geological facts
The vibrant green coloration is diagnostic of copper secondary minerals like malachite, which have been used as pigments and ornamental stones for thousands of years.
Field identification & locations
Identify by its distinctive green and blue staining on a host rock, often reactive to dilute hydrochloric acid due to carbonate content. Found globally near major copper deposits.
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