Faustite and Augite Physical Properties

Faustite and Augite Chemical Formula

While comparing Faustite and Augite 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 Augite 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 Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

Faustite and Augite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Augite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.19-3.56 whereas that of Augite is 3.19-3.56.