London blue topaz and Beryllonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
Not Available
2.79-2.87
Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Not Available
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Mohs Hardness
Not Available
5.5-6
Chemical Composition
Not Available
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
London blue topaz and Beryllonite Chemical Formula
While comparing London blue topaz and Beryllonite 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 London blue topaz and Beryllonite chemical formula.
>- Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
London blue topaz and Beryllonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is London blue topaz and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use London blue topaz and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of London blue topaz is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.