Iolite and Prase Physical Properties

Iolite and Prase Chemical Formula

While comparing Iolite and Prase 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 Prase chemical formula.

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

Iolite and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Prase Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.64-2.69 whereas that of Prase is 2.64-2.69.