Image: Photo by and (c)2015 Derek Ramsey (<a href="https://en.wikipedia.org/wiki/User:Ram-Man" class="extiw" title="en:User:Ram-Man">Ram-Man</a>) (CC BY-SA 4.0)
monoclinicuncommoncarbonates
Azurite
Cu₃(CO₃)₂(OH)₂
This specimen features a vibrant cluster of deep azure-blue azurite crystals, exhibiting a vitreous luster and forming an attractive aggregate.
Azurite Physical Properties
Mohs Hardness
3.5Crystal System
monoclinicLuster
vitreousStreak Color
light blueCleavage
good on {011}, poor on {100}Fracture
conchoidalSpecific Gravity
3.8Colors
azure blue, deep blue, light blueTransparency
translucentType Locality
Guangdong Province, ChinaMineral Group
carbonatesUses
copper ore, pigment, collector's specimens, minor gemstoneAssociated Minerals
malachite, cuprite, chrysocolla, native copper, limoniteRarity
uncommonGeological Context
Azurite is a secondary mineral formed in the oxidized zone of copper ore deposits, typically in arid or semi-arid environments, resulting from the alteration of primary copper minerals by carbonated waters.