Prase and Iolite Physical Properties

Prase and Iolite Chemical Formula

While comparing Prase 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 Prase and Iolite chemical formula.

• Chemical formula of Prase- SiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

Prase and Iolite Specific Gravity

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