Topaz and Bustamite Physical Properties

Topaz and Bustamite Chemical Formula

While comparing Topaz and Bustamite 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 Topaz and Bustamite chemical formula.

• Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
• Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.