Chrysoberyl and Elbaite Physical Properties

Chrysoberyl

Elbaite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.69-3.812.90-3.10

1 7.18

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Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Uneven, Conchoidal

Cleavage

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

Poor/indistinct on {1120} and {1011}

Mohs Hardness

8.57

2 10

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Chemical Composition

BeAl ₂ O ₄

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Chrysoberyl and Elbaite Chemical Formula

While comparing Chrysoberyl and Elbaite 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 Elbaite chemical formula.

Chemical formula of Chrysoberyl- BeAl ₂ O ₄
Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Compare Green Gemstones

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Chrysoberyl and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.