Rubellite and Chlorapatite Physical Properties

Rubellite and Chlorapatite Chemical Formula

While comparing Rubellite and Chlorapatite 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 Rubellite and Chlorapatite chemical formula.

• 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.
• Chemical formula of Chlorapatite- Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)

Rubellite and Chlorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Chlorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Chlorapatite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 3.17-3.18 whereas that of Chlorapatite is 3.17-3.18.