Sugilite and Sylvite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
1.993
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Brittle
Cleavage
Poor on {0001}
Perfect on [100], [010], [001]
Mohs Hardness
5.5-6.5
2.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Sugilite and Sylvite Chemical Formula
While comparing Sugilite and Sylvite 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 Sugilite and Sylvite chemical formula.
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Sugilite and Sylvite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sugilite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 1.993 whereas that of Sylvite is 1.993.