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Star Sapphire
Star Sapphire

Powellite
Powellite



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Star Sapphire
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Powellite

Star Sapphire and Powellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.
 
-
-
-
4.23
Conchoidal
{111} Distinct
3.5-4
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Sapphire and Powellite Chemical Formula

While comparing Star Sapphire and Powellite 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 Powellite chemical formula.

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Star Sapphire and Powellite Specific Gravity

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