Pyrrhotite and Andradite Physical Properties

Pyrrhotite and Andradite Chemical Formula

While comparing Pyrrhotite and Andradite 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 Pyrrhotite and Andradite chemical formula.

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• Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Pyrrhotite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrrhotite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrrhotite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Pyrrhotite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.