Feldspar and Faustite Physical Properties

Feldspar and Faustite Chemical Formula

While comparing Feldspar and Faustite 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 Feldspar and Faustite chemical formula.

• Chemical formula of Feldspar- KAlSi3O8
• Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Feldspar and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Feldspar and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Faustite Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 2.9 whereas that of Faustite is 2.9.