Staurolite and Benitoite Physical Properties

Staurolite and Benitoite Chemical Formula

While comparing Staurolite and Benitoite 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 Staurolite and Benitoite chemical formula.

• Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
• Chemical formula of Benitoite- BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Staurolite and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.