aZURITE

Photo courtesy of Amazon

Species:  Azurite
​​Mohs Hardness:  3.5 to 4 out of 10
Color:  Opaque dark blue to violetish blue, evenly colored, with matrix or other inclusions.  Can sometimes be semitransparent to translucent.
RI:  1.730 to 1.836 (+/- 0.010)
Birefringence:  0.106 (Birefringence blink technique)
SR/DR/AGG:  AGG (Rare transparent material is DR and biaxial positive)
Spectrum:  Not diagnostic
Fluorescence:  Inert
SG:  3.80 (+0.09 / -0.50)

azurite Facts

Photo courtesy of Eric Hunt

Azurite is an opaque, dark blue gem.

Azurite commonly is found with matrix and other inclusions such as calcite and malachite.

​When enough malachite is present in azurite, it is classified as Azurmalachite.