Emerald and Aragonite Physical Properties

Emerald

Aragonite

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Physical Properties

Tenacity

Brittle

Solubility

Dilute acid

Durability

Hard

Specific Gravity

2.67-2.782.93-2.96

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Subconchoidal, Conchoidal

Cleavage

Imperfect on the [0001]

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

Mohs Hardness

7.5-83.5-4

2 10

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Chemical Composition

Be₃Al₂SiO₆

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

Emerald and Aragonite Chemical Formula

While comparing Emerald 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 Emerald and Aragonite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Emerald and Aragonite Specific Gravity

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