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Precious coral
Precious coral

Star Sapphire
Star Sapphire



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Precious coral
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Star Sapphire

Precious coral and Star Sapphire Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available3.90-4.05
Amber
1 7.18
1.5 Fracture
Not Available
Not Available
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
3.5Not Available
Amber
2 10
1.8 Chemical Composition
Not Available
Al 2O 3Ulrich Henn and Claudio C.

Precious coral and Star Sapphire Chemical Formula

While comparing Precious coral 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 Precious coral and Star Sapphire chemical formula.

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  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Precious coral and Star Sapphire Specific Gravity

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