Iolite and Apophyllite Physical Properties

Iolite and Apophyllite Chemical Formula

While comparing Iolite and Apophyllite 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 Iolite and Apophyllite chemical formula.

• Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
• Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Iolite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.