Iolite and Chromite Physical Properties

Iolite and Chromite Chemical Formula

While comparing Iolite and Chromite 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 Chromite chemical formula.

• Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
• Chemical formula of Chromite- Fe++Cr2O4

Iolite and Chromite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Chromite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 4.5-4.8 whereas that of Chromite is 4.5-4.8.