Faustite and Girasol Physical Properties

Faustite and Girasol Chemical Formula

While comparing Faustite and Girasol 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 Girasol 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 Girasol- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Faustite and Girasol Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Girasol Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Girasol Optical Properties during the identification of gemstone. Specific gravity of Faustite is 1.98-2.50 whereas that of Girasol is 1.98-2.50.