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London blue topaz
London blue topaz

Hardystonite
Hardystonite



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London blue topaz
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Hardystonite

London blue topaz and Hardystonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available3.396-3.443
Amber
1 7.18
1.5 Fracture
Not Available
Brittle, Metallic
1.6 Cleavage
Not Available
[001] good, [100] and [110] fair
1.7 Mohs Hardness
Not Available3-4
Amber
2 10
1.8 Chemical Composition
Not Available
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

London blue topaz and Hardystonite Chemical Formula

While comparing London blue topaz and Hardystonite 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 Hardystonite chemical formula.

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  • Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

London blue topaz and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is London blue topaz and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use London blue topaz and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of London blue topaz is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.