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Star Sapphire
Star Sapphire

Sard
Sard



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Star Sapphire
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Sard

Star Sapphire and Sard 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.
 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Star Sapphire and Sard Chemical Formula

While comparing Star Sapphire and Sard 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 Sard chemical formula.

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Star Sapphire and Sard Specific Gravity

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