Emerald and Phenakite Physical Properties

Emerald

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Hard

Specific Gravity

2.67-2.782.90-2.98

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Conchoidal, ConchoidalWalter Schumann

Cleavage

Imperfect on the [0001]

Distinct on {11 2 0}, imperfect on {10 1 1}

Mohs Hardness

7.5-87.5-8

2 10

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Chemical Composition

Be₃Al₂SiO₆

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Emerald and Phenakite Chemical Formula

While comparing Emerald and Phenakite 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 Phenakite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Emerald and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.