Dravite and Chrome Tourmaline Physical Properties

Dravite and Chrome Tourmaline Chemical Formula

While comparing Dravite and Chrome Tourmaline 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 Dravite and Chrome Tourmaline chemical formula.

• Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
• Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.

Dravite and Chrome Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.