Austinite and Starlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Easily soluble in cold dilute HCl
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.12
3.91-4.73
Fracture
Brittle, Uneven, Brittle, Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Good in two directions parallel to the prism faces {110}
Not Available
Mohs Hardness
4-4.5
6.5-7.5
Chemical Composition
CaZn(AsO4)(OH)
ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Austinite and Starlite Chemical Formula
While comparing Austinite and Starlite 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 Starlite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Starlite- ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Austinite and Starlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Starlite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.91-4.73 whereas that of Starlite is 3.91-4.73.