Spessartine and Dravite Physical Properties

Spessartine and Dravite Chemical Formula

While comparing Spessartine and Dravite 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 Spessartine and Dravite chemical formula.

• Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
• Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Spessartine and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Dravite Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 3.03-3.18 whereas that of Dravite is 3.03-3.18.