Adularia and Polyhalite Physical Properties

Adularia and Polyhalite Chemical Formula

While comparing Adularia and Polyhalite 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 Adularia and Polyhalite chemical formula.

• Chemical formula of Adularia- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Adularia and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adularia and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adularia and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Adularia is 2.78 whereas that of Polyhalite is 2.78.