Augelite and Allanite Physical Properties

Augelite

Allanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.70-2.753.40-4.20

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

2 10

1.8 Chemical Composition

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

Not Available

Augelite and Allanite Chemical Formula

While comparing Augelite and Allanite 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 Allanite chemical formula.

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

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Augelite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Augelite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.