Polyhalite and Variscite Physical Properties

Polyhalite and Variscite Chemical Formula

While comparing Polyhalite and Variscite 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 Polyhalite and Variscite chemical formula.

• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
• Chemical formula of Variscite- AlPO₄ · 2(H₂O)

Polyhalite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.