Apatite and Chrysoberyl Physical Properties

Apatite

Chrysoberyl

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.233.69-3.81

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic

1.6 Cleavage

[0001] indistinct, [1010] indistinct

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

1.7 Mohs Hardness

58.5

2 10

1.8 Chemical Composition

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

BeAl ₂ O ₄

Apatite and Chrysoberyl Chemical Formula

While comparing Apatite 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 Apatite and Chrysoberyl chemical formula.

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

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Apatite and Chrysoberyl Specific Gravity

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