Sellaite and Fayalite Physical Properties

Sellaite and Fayalite Chemical Formula

While comparing Sellaite and Fayalite 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 Sellaite and Fayalite chemical formula.

• Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
• Chemical formula of Fayalite- Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Sellaite and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sellaite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 4.392 whereas that of Fayalite is 4.392.