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