Chrysoberyl and Apatite Physical Properties

Chrysoberyl

Apatite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.69-3.813.16-3.23

1 7.18

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Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Conchoidal, Uneven, Conchoidal to uneven

Cleavage

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

[0001] indistinct, [1010] indistinct

Mohs Hardness

8.55

2 10

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Chemical Composition

BeAl ₂ O ₄

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Chrysoberyl and Apatite Chemical Formula

While comparing Chrysoberyl and Apatite 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 Apatite chemical formula.

Chemical formula of Chrysoberyl- BeAl ₂ O ₄
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

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Chrysoberyl and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Apatite Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 3.16-3.23 whereas that of Apatite is 3.16-3.23.