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Fire Opal and Star Sapphire Physical Properties


Star Sapphire and Fire Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.97-2.22   
3.90-4.05   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)   
Not Available   

Cleavage
Not Available   
Not Available   

Mohs Hardness
6-6.5   
Not Available   

Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references   
Al 2O 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Fire Opal and Star Sapphire Chemical Formula

While comparing Fire Opal 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 Fire Opal and Star Sapphire chemical formula.

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Fire Opal and Star Sapphire Specific Gravity

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

Red Gemstones

Red Gemstones


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