Phenakite and Foitite Physical Properties

Phenakite and Foitite Chemical Formula

While comparing Phenakite and Foitite 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 Phenakite and Foitite chemical formula.

• Chemical formula of Phenakite- Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• 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)

Phenakite and Foitite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Foitite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Foitite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3.17 whereas that of Foitite is 3.17.