Variscite and Gypsum Physical Properties

Variscite and Gypsum Chemical Formula

While comparing Variscite and Gypsum 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 Variscite and Gypsum chemical formula.

• Chemical formula of Variscite- AlPO₄ · 2(H₂O)
• Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Variscite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Variscite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Variscite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.