Emerald and Sugilite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
2.67-2.78
2.69-2.79
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Imperfect on the [0001]
Poor on {0001}
Mohs Hardness
7.5-8
5.5-6.5
Chemical Composition
Be3Al2SiO6
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Emerald and Sugilite Chemical Formula
While comparing Emerald 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 Emerald and Sugilite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Emerald and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.
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