Pargasite and Adularia Physical Properties

Pargasite and Adularia Chemical Formula

While comparing Pargasite and Adularia 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 Adularia 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 Adularia- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Pargasite and Adularia Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Adularia Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Adularia Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 2.54-2.61 whereas that of Adularia is 2.54-2.61.