Sapphire and Verdelite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.03
2.90-3.40
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None, but may exhibit parting
Not Available
Chemical Composition
Al 2 O 3
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Sapphire and Verdelite Chemical Formula
While comparing Sapphire and Verdelite 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 Sapphire and Verdelite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Sapphire and Verdelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Verdelite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.90-3.40 whereas that of Verdelite is 2.90-3.40.
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