Petalite and Cordierite Iolite Physical Properties

Petalite and Cordierite Iolite Chemical Formula

While comparing Petalite and Cordierite 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 Petalite and Cordierite Iolite chemical formula.

• Chemical formula of Petalite- LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Petalite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Petalite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.