Faustite and Hyalite Physical Properties

Faustite and Hyalite Chemical Formula

While comparing Faustite and Hyalite 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 Faustite and Hyalite chemical formula.

• Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Faustite and Hyalite Specific Gravity

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