Polyhalite and Hollandite Physical Properties

Polyhalite and Hollandite Chemical Formula

While comparing Polyhalite and Hollandite 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 Hollandite chemical formula.

• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
• Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Polyhalite and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 5.05 whereas that of Hollandite is 5.05.