Andradite and Verdite Physical Properties

Andradite and Verdite Chemical Formula

While comparing Andradite and Verdite 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 Andradite and Verdite chemical formula.

• Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
• Chemical formula of Verdite- NaFeS2•2(H2O)

Andradite and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.