Faustite and Chalcedony Physical Properties

Faustite and Chalcedony Chemical Formula

While comparing Faustite and Chalcedony 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 Chalcedony 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 Chalcedony- SiO₂

Faustite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.