Atacamite and Polyhalite Physical Properties

Atacamite and Polyhalite Chemical Formula

While comparing Atacamite 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 Atacamite and Polyhalite chemical formula.

• Chemical formula of Atacamite- Cu2Cl(OH)3
• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Atacamite and Polyhalite Specific Gravity

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