Aragonite and Augelite Physical Properties

Aragonite

Augelite

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Physical Properties

Tenacity

Brittle

Solubility

Dilute acid

Durability

Specific Gravity

2.93-2.962.70-2.75

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal

Cleavage

Distinct on {010}, imperfect {110} and {011}

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

Mohs Hardness

3.5-44.5-5

2 10

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Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Aragonite and Augelite Chemical Formula

While comparing Aragonite 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 Aragonite and Augelite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Aragonite and Augelite Specific Gravity

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