Demantoid and Achroite Physical Properties

Demantoid and Achroite Chemical Formula

While comparing Demantoid and Achroite 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 Achroite chemical formula.

• Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
• 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.

Demantoid and Achroite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Demantoid and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Achroite Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 2.90-3.40 whereas that of Achroite is 2.90-3.40.