Sard and Verdite Physical Properties

Sard and Verdite Chemical Formula

While comparing Sard 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 Sard and Verdite chemical formula.

• Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
• Chemical formula of Verdite- NaFeS2•2(H2O)

Sard and Verdite Specific Gravity

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