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Star Sapphire and Emerald Physical Properties


Emerald and Star Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.90-4.05   
2.67-2.78   

Fracture
Not Available   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Not Available   
Imperfect on the [0001]   

Mohs Hardness
Not Available   
7.5-8   

Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.   
Be3Al2SiO6   

Optical Properties >>
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Star Sapphire and Emerald Chemical Formula

While comparing Star Sapphire and Emerald 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 Emerald chemical formula.

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Star Sapphire and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Emerald Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.67-2.78 whereas that of Emerald is 2.67-2.78.

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Blue Gemstones


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