Faustite and Sard Physical Properties

Faustite and Sard Chemical Formula

While comparing Faustite and Sard 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 Sard 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 Sard- SiO 2Ulrich Henn and Claudio C.

Faustite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Sard Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.58-2.63 whereas that of Sard is 2.58-2.63.