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Poudretteite
Poudretteite

Star Sapphire
Star Sapphire



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Poudretteite
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Star Sapphire

Poudretteite and Star Sapphire Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.51-2.53
Conchoidal, Splintery
None
5
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.

Poudretteite and Star Sapphire Chemical Formula

While comparing Poudretteite 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 Poudretteite and Star Sapphire chemical formula.

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Poudretteite and Star Sapphire Specific Gravity

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