Amazonite and Aragonite Physical Properties

Amazonite

Aragonite

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Physical Properties

Tenacity

Brittle

Solubility

Dilute acid

Durability

Specific Gravity

2.55-2.572.93-2.96

1 7.18

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Fracture

Uneven

Subconchoidal, Conchoidal

Cleavage

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

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

Mohs Hardness

6-6.53.5-4

2 10

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Chemical Composition

KAlSi₃O₈

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

Amazonite and Aragonite Chemical Formula

While comparing Amazonite and Aragonite 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 Amazonite and Aragonite chemical formula.

Chemical formula of Amazonite- KAlSi₃O₈
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Amazonite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amazonite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amazonite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Amazonite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.