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Star Ruby
Star Ruby

Augelite
Augelite



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Star Ruby
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Augelite

Star Ruby and Augelite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.95-4.102.70-2.75
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

None
From the Greek for luster, for its pearly luster on the cleavage.

Mohs Hardness

-99994.5-5
2 10
👆🏻

Chemical Composition

Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Ruby and Augelite Chemical Formula

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

  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Ruby and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Ruby and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Ruby and Augelite Optical Properties during the identification of gemstone. Specific gravity of Star Ruby is 2.70-2.75 whereas that of Augelite is 2.70-2.75.