Topaz and Adularia Physical Properties

Topaz and Adularia Chemical Formula

While comparing Topaz and Adularia 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 Adularia chemical formula.

• Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
• Chemical formula of Adularia- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Topaz and Adularia Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Adularia Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Adularia Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.54-2.61 whereas that of Adularia is 2.54-2.61.