Foitite and Mellite Physical Properties

Foitite and Mellite Chemical Formula

While comparing Foitite and Mellite 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 Foitite and Mellite chemical formula.

• Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Foitite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Foitite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Foitite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.