Nacre and Gahnite Physical Properties

Nacre and Gahnite Chemical Formula

While comparing Nacre 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 Nacre and Gahnite chemical formula.

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• Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Nacre and Gahnite Specific Gravity

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