Pectolite and Polyhalite Physical Properties

Pectolite and Polyhalite Chemical Formula

While comparing Pectolite 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 Pectolite and Polyhalite chemical formula.

• Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Pectolite and Polyhalite Specific Gravity

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