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Star Sapphire
Star Sapphire

Bytownite
Bytownite



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Star Sapphire
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Bytownite

Star Sapphire and Bytownite 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
-
-
2.72-2.75
Uneven
Perfect on [001], good on [010], imperfect on [110]
6-6.5
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Sapphire and Bytownite Chemical Formula

While comparing Star Sapphire and Bytownite 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 Bytownite chemical formula.

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Star Sapphire and Bytownite Specific Gravity

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