Pyrite and Ettringite Physical Properties

Pyrite and Ettringite Chemical Formula

While comparing Pyrite and Ettringite 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 Ettringite chemical formula.

• Chemical formula of Pyrite- FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Pyrite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 1.77 whereas that of Ettringite is 1.77.