Adularia and Iolite Physical Properties

Adularia and Iolite Chemical Formula

While comparing Adularia and Iolite 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 Adularia and Iolite chemical formula.

• Chemical formula of Adularia- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

Adularia and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adularia and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adularia and Iolite Optical Properties during the identification of gemstone. Specific gravity of Adularia is 2.6-2.7 whereas that of Iolite is 2.6-2.7.