Feldspar and Star Ruby Physical Properties

Feldspar and Star Ruby Chemical Formula

While comparing Feldspar and Star Ruby 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 Feldspar and Star Ruby chemical formula.

• Chemical formula of Feldspar- KAlSi3O8
• Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Feldspar and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Feldspar and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.