Prase and Vivianite Physical Properties

Prase and Vivianite Chemical Formula

While comparing Prase and Vivianite 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 Prase and Vivianite chemical formula.

• Chemical formula of Prase- SiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Prase and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prase and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Prase is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.