Faustite and Labradorite Physical Properties

Faustite and Labradorite Chemical Formula

While comparing Faustite and Labradorite 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 Labradorite 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 Labradorite- (Na,Ca)_1-2Si_3-2O₈

Faustite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.