Moldavite and Achroite Physical Properties

Moldavite and Achroite Chemical Formula

While comparing Moldavite 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 Moldavite and Achroite chemical formula.

• Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
• 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.

Moldavite and Achroite Specific Gravity

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