Phenakite and Chrysoberyl Physical Properties

Phenakite

Chrysoberyl

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.983.69-3.81

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Cleavage

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

Distinct on {110}, imperfect on {010}, poor on {001}

Mohs Hardness

7.5-88.5

2 10

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Chemical Composition

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

BeAl ₂ O ₄

Phenakite and Chrysoberyl Chemical Formula

While comparing Phenakite and Chrysoberyl 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 Phenakite and Chrysoberyl chemical formula.

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

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Phenakite and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.