Mohs Hardness of 3.5 with a monoclinic crystal structure
Azurite is an azure blue copper mineral, it is occasionally found as prismatic crystals, although it is very rarely ever faceted into a gem. More often it is found in massive form inter-grown with Malachite coming about as a result of the weathering and oxidation of copper sulfide minerals.
Azurite is found in many particular copper mining areas such as Australia, Chile, Africa and China. Stones from Chessy, which is near Lyons in France are named Chessylite.
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