Austinite and Anorthite Physical Properties
Solubility
Easily soluble in cold dilute HCl
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.12
2.77
Fracture
Brittle, Uneven, Brittle, Uneven
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Good in two directions parallel to the prism faces {110}
Perfect [001] good [010] poor [110]
Mohs Hardness
4-4.5
6-6.5
Chemical Composition
CaZn(AsO4)(OH)
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Austinite and Anorthite Chemical Formula
While comparing Austinite and Anorthite 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 Austinite and Anorthite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Austinite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.77 whereas that of Anorthite is 2.77.