Nosean and Bertrandite Physical Properties

Nosean and Bertrandite Chemical Formula

While comparing Nosean and Bertrandite 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 Nosean and Bertrandite chemical formula.

• Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
• Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Nosean and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nosean and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nosean and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Nosean is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.