Polyhalite and Danburite Physical Properties

Polyhalite and Danburite Chemical Formula

While comparing Polyhalite and Danburite 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 Danburite chemical formula.

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• Chemical formula of Danburite- CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Polyhalite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.