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Star Sapphire
Star Sapphire

Riebeckite
Riebeckite



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Star Sapphire
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Riebeckite

Star Sapphire and Riebeckite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.90-4.05
3.28-3.44
1.5 Fracture
Not Available
Uneven, Splintery, Brittle
1.6 Cleavage
Not Available
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
1.7 Mohs Hardness
Not Available
5.0-6.0
1.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Not Available

Star Sapphire and Riebeckite Chemical Formula

While comparing Star Sapphire and Riebeckite 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 Riebeckite chemical formula.

  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
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Star Sapphire and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.