Zinnwaldite and Polyhalite Physical Properties

Zinnwaldite and Polyhalite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Polyhalite chemical formula.

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Zinnwaldite and Polyhalite Specific Gravity

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