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Star Sapphire
Star Sapphire
☒

Kyanite
Kyanite
☒



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Star Sapphire
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Kyanite

Star Sapphire and Kyanite 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.
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Star Sapphire and Kyanite Chemical Formula

While comparing Star Sapphire and Kyanite 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 Kyanite chemical formula.

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Star Sapphire and Kyanite Specific Gravity

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