Azurite and Austinite Physical Properties
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
3.70-3.90
4.12
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Brittle, Uneven, Brittle, Uneven
Cleavage
Perfect on {011}, fair on {100}, poor on {110}
Good in two directions parallel to the prism faces {110}
Mohs Hardness
3.5-4
4-4.5
Chemical Composition
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)
Azurite and Austinite Chemical Formula
While comparing Azurite and Austinite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Azurite and Austinite chemical formula.
- Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Azurite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Azurite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 4.12 whereas that of Austinite is 4.12.