Chrysoberyl and Bytownite Physical Properties

Chrysoberyl

Bytownite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.69-3.812.72-2.75

1 7.18

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Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Uneven

Cleavage

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

Perfect on [001], good on [010], imperfect on [110]

Mohs Hardness

8.56-6.5

2 10

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Chemical Composition

BeAl ₂ O ₄

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Chrysoberyl and Bytownite Chemical Formula

While comparing Chrysoberyl and Bytownite 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 Chrysoberyl and Bytownite chemical formula.

Chemical formula of Chrysoberyl- BeAl ₂ O ₄
Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

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Chrysoberyl Vs Demantoid

Chrysoberyl Vs Dioptase

Chrysoberyl and Bytownite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.