Starlite and Pumpellyite Physical Properties

Starlite and Pumpellyite Chemical Formula

While comparing Starlite and Pumpellyite 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 Pumpellyite chemical formula.

• Chemical formula of Starlite- ZrSiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Starlite and Pumpellyite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Starlite and Pumpellyite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Starlite and Pumpellyite Optical Properties during the identification of gemstone. Specific gravity of Starlite is 3.20-3.30 whereas that of Pumpellyite is 3.20-3.30.