Thomsonite and Gahnite Physical Properties

Thomsonite and Gahnite Chemical Formula

While comparing Thomsonite 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 Thomsonite and Gahnite chemical formula.

• Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Thomsonite and Gahnite Specific Gravity

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