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.