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Star Sapphire
Star Sapphire

Legrandite
Legrandite



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Star Sapphire
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Legrandite

Star Sapphire and Legrandite 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.
 
Brittle
-
-
3.98-4.04
Conchoidal
Imperfect, poor one {100}
4.5-5
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Star Sapphire and Legrandite Chemical Formula

While comparing Star Sapphire and Legrandite 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 Legrandite chemical formula.

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Star Sapphire and Legrandite Specific Gravity

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