Apatite and Aquamarine Physical Properties

Apatite

Aquamarine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.23

2.66-2.80

1.5 Fracture

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

Not Available

1.6 Cleavage

[0001] indistinct, [1010] indistinct

3,1 basal

1.7 Mohs Hardness

7.5-8

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Apatite and Aquamarine Chemical Formula

While comparing Apatite and Aquamarine 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 Aquamarine 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 Aquamarine- Be₃Al₂SiO₆

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Apatite and Aquamarine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Aquamarine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Aquamarine Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.66-2.80 whereas that of Aquamarine is 2.66-2.80.