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Star Sapphire and Charlesite Physical Properties


Charlesite and Star Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.90-4.05   
1.79   

Fracture
Not Available   
Irregular/uneven, Brittle, Metallic   

Cleavage
Not Available   
Perfect on {10bar10}   

Mohs Hardness
Not Available   
2.5   

Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.   
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)   

Optical Properties >>
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Star Sapphire and Charlesite Chemical Formula

While comparing Star Sapphire and Charlesite 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 Charlesite chemical formula.

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Star Sapphire and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 1.79 whereas that of Charlesite is 1.79.

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