monoclinic
Azurite
Cu3(CO3)2(OH)2
Quick Facts
Hardness
3.5-4
Specific Gravity
3.77-3.89
Refractive Index
1.730-1.838
Crystal Structure
monoclinic[2/m]:{001}@1.0 + {110}@0.8 + {100}@0.7 + {011}@0.5 + {111}@0.4 monoclinic
2/m
{001} {110} {100} {011} {111}
Physical Properties
Crystal Systemmonoclinic
Hardness (Mohs)3.5-4
Specific Gravity3.77-3.89
CleavagePerfect {011}, fair {100}
FractureConchoidal
LustreVitreous (crystals) to earthy (massive)
Optical Properties
Refractive Index1.730-1.838
Birefringence0.108-0.110
PleochroismStrong (light blue to dark blue shades)
Interactive Preview
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Open in Playground monoclinic[2/m]:{001}@1.0 + {110}@0.8 + {100}@0.7 + {011}@0.5 + {111}@0.4 Related Minerals
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