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Augelite
Augelite

Star Sapphire
Star Sapphire



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Augelite
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Star Sapphire

Augelite and Star Sapphire Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.70-2.753.90-4.05
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Not Available
1.6 Cleavage
From the Greek for luster, for its pearly luster on the cleavage.
Not Available
1.7 Mohs Hardness
4.5-5Not Available
Amber
2 10
1.8 Chemical Composition
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
Al 2O 3Ulrich Henn and Claudio C.

Augelite and Star Sapphire Chemical Formula

While comparing Augelite and Star Sapphire 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 Augelite and Star Sapphire chemical formula.

  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Augelite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Augelite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.