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London blue topaz
London blue topaz

Sapphire
Sapphire



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London blue topaz
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Sapphire

London blue topaz and Sapphire Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available3.95-4.03
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
Not Available
None, but may exhibit parting
1.7 Mohs Hardness
Not Available9
Amber
2 10
1.8 Chemical Composition
Not Available
Al 2 O 3

London blue topaz and Sapphire Chemical Formula

While comparing London blue topaz and Sapphire 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 Sapphire chemical formula.

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  • Chemical formula of Sapphire- Al 2 O 3

London blue topaz and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is London blue topaz and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use London blue topaz and Sapphire Optical Properties during the identification of gemstone. Specific gravity of London blue topaz is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.