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Sardonyx and Star Sapphire Physical Properties


Star Sapphire and Sardonyx Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.70   
3.90-4.05   

Fracture
Not Available   
Not Available   

Cleavage
Not Available   
Not Available   

Mohs Hardness
6.5-7   
Not Available   

Chemical Composition
SiO 2Ulrich Henn and Claudio C.   
Al 2O 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Sardonyx and Star Sapphire Chemical Formula

While comparing Sardonyx and Star Sapphire 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 Sardonyx and Star Sapphire chemical formula.

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Sardonyx and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.

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