Pyrite and Willemite Physical Properties

Pyrite and Willemite Chemical Formula

While comparing Pyrite and Willemite 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 Willemite chemical formula.

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

Pyrite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.