Gypsum and Starlite Physical Properties
Tenacity
Flexible
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.20-2.40
3.91-4.73
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {010}, distinct on {100}
Not Available
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Gypsum and Starlite Chemical Formula
While comparing Gypsum 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 Gypsum and Starlite chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Starlite- ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Gypsum and Starlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Starlite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.91-4.73 whereas that of Starlite is 3.91-4.73.