Pargasite and Pyrite Physical Properties

Pargasite and Pyrite Chemical Formula

While comparing Pargasite and Pyrite 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 Pargasite and Pyrite chemical formula.

• Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Pyrite- FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pargasite and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.