Pyrite and Gahnite Physical Properties

Pyrite and Gahnite Chemical Formula

While comparing Pyrite 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 Pyrite and Gahnite chemical formula.

• Chemical formula of Pyrite- FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Pyrite and Gahnite Specific Gravity

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