Boracite and Norbergite Physical Properties

Boracite and Norbergite Chemical Formula

While comparing Boracite and Norbergite 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 Boracite and Norbergite chemical formula.

• Chemical formula of Boracite- Mg 3B 7O 13ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Boracite and Norbergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boracite and Norbergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Norbergite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 3.177 whereas that of Norbergite is 3.177.