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Micro-crystalline Azurite layered over Malachite

Credit: John Betts - Fine Minerals

Old classic specimen of micro-crystalline Azurite layered over Malachite!

Circa late 1880-1890s. From the Lavender Pit, Copper Queen Mine, Bisbee, Cochise County, Arizona.

Formula: Cu3(CO3)2(OH)2
System: Monoclinic
Colour: Azure blue, blue, light ...
Lustre: Vitreous
Hardness: 3½ - 4

A secondary copper mineral frequently found in the oxidized zones of Cu-bearing ore deposits.

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