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Star Sapphire
Star Sapphire

Albite
Albite



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Star Sapphire
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Albite

Star Sapphire and Albite 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
2.60-2.65
1.5 Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
1.6 Cleavage
Not Available
Perfect on {001}, very good on {010}, imperfect on {110}
1.7 Mohs Hardness
Not Available
6-6.5
1.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Sapphire and Albite Chemical Formula

While comparing Star Sapphire and Albite 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 Albite chemical formula.

  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
  • Chemical formula of Albite- NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Sapphire and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Albite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.60-2.65 whereas that of Albite is 2.60-2.65.

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