Pollucite and Norbergite Physical Properties

Pollucite and Norbergite Chemical Formula

While comparing Pollucite 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 Pollucite and Norbergite chemical formula.

• Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
• Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Pollucite and Norbergite Specific Gravity

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