Idocrase and Andradite Physical Properties

Idocrase and Andradite Chemical Formula

While comparing Idocrase 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 Idocrase and Andradite chemical formula.

• Chemical formula of Idocrase- Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2
• Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Idocrase and Andradite Specific Gravity

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