Sapphire and Sugilite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.03
2.69-2.79
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None, but may exhibit parting
Poor on {0001}
Chemical Composition
Al 2 O 3
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sapphire and Sugilite Chemical Formula
While comparing Sapphire and Sugilite 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 Sugilite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sapphire and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.
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