Helenite and Chlorastrolite Physical Properties

Helenite and Chlorastrolite Chemical Formula

While comparing Helenite and Chlorastrolite 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 Helenite and Chlorastrolite chemical formula.

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• Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

Helenite and Chlorastrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Helenite and Chlorastrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Helenite and Chlorastrolite Optical Properties during the identification of gemstone. Specific gravity of Helenite is 3.1-3.5 whereas that of Chlorastrolite is 3.1-3.5.