Tourmaline and Gahnite Physical Properties

Tourmaline and Gahnite Chemical Formula

While comparing Tourmaline and Gahnite 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 Tourmaline and Gahnite chemical formula.

• Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
• Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Tourmaline and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.