Polyhalite and Verdite Physical Properties

Polyhalite and Verdite Chemical Formula

While comparing Polyhalite and Verdite 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 Verdite chemical formula.

• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
• Chemical formula of Verdite- NaFeS2•2(H2O)

Polyhalite and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.