Alabaster and Starlite Physical Properties

Alabaster and Starlite Chemical Formula

While comparing Alabaster 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 Alabaster and Starlite chemical formula.

• Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
• Chemical formula of Starlite- ZrSiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Alabaster and Starlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alabaster and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alabaster and Starlite Optical Properties during the identification of gemstone. Specific gravity of Alabaster is 3.91-4.73 whereas that of Starlite is 3.91-4.73.