Achroite and Omphacite Physical Properties

Achroite and Omphacite Chemical Formula

While comparing Achroite and Omphacite 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 Achroite and Omphacite chemical formula.

• Chemical formula of Achroite- 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 Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Achroite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Achroite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.