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Sapphire
Sapphire

Sellaite
Sellaite



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Sapphire
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Sellaite

Sapphire and Sellaite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble
-
3.95-4.03
Uneven
None, but may exhibit parting
9
Al 2 O 3
 
Brittle
-
-
3.14-3.16
Conchoidal
Perfect on {010} and {110}
5-5.5
MgF 2Ulrich Henn and Claudio C.

Sapphire and Sellaite Chemical Formula

While comparing Sapphire and Sellaite 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 Sapphire and Sellaite chemical formula.

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Sapphire and Sellaite Specific Gravity

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