Adularia and Nepheline Physical Properties

Adularia and Nepheline Chemical Formula

While comparing Adularia and Nepheline 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 Adularia and Nepheline chemical formula.

• Chemical formula of Adularia- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Adularia and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adularia and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adularia and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Adularia is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.