Ruby and Augelite Physical Properties

Ruby

Augelite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.70-2.75

1 7.18

1.5 Fracture

Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

No true cleavage

From the Greek for luster, for its pearly luster on the cleavage.

1.7 Mohs Hardness

94.5-5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Ruby and Augelite Chemical Formula

While comparing 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 Ruby and Augelite chemical formula.

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

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Ruby and Augelite Specific Gravity

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