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Star Sapphire
Star Sapphire

Sugilite
Sugilite



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Star Sapphire
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Sugilite

Star Sapphire and Sugilite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.
 
-
-
-
2.69-2.79
Conchoidal
Poor on {0001}
5.5-6.5
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Star Sapphire and Sugilite Chemical Formula

While comparing Star 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 Star Sapphire and Sugilite chemical formula.

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Star Sapphire and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire Vs Sugilite during the identification of gemstone. Specific gravity of Star Sapphire is whereas that of Sugilite is .