Staurolite and Taaffeite Physical Properties

Staurolite and Taaffeite Chemical Formula

While comparing Staurolite and Taaffeite 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 Taaffeite chemical formula.

• Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
• Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Staurolite and Taaffeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.