Bertrandite and London blue topaz Physical Properties

Bertrandite and London blue topaz Chemical Formula

While comparing Bertrandite and London blue topaz 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 Bertrandite and London blue topaz chemical formula.

• Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
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Bertrandite and London blue topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and London blue topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and London blue topaz Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is Not Available whereas that of London blue topaz is Not Available.