Pargasite and Catapleiite Physical Properties

Pargasite and Catapleiite Chemical Formula

While comparing Pargasite and Catapleiite 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 Catapleiite 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 Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Pargasite and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 2.72 whereas that of Catapleiite is 2.72.