Demantoid and Rubellite Physical Properties

Demantoid and Rubellite Chemical Formula

While comparing Demantoid and Rubellite 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 Demantoid and Rubellite chemical formula.

• Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
• Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Demantoid and Rubellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Demantoid and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.