Apatite and Cryolite Physical Properties

Apatite

Cryolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.232.97

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

[0001] indistinct, [1010] indistinct

None observed

1.7 Mohs Hardness

52.5

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

Na 3AlF 6Ulrich Henn and Claudio C.

Apatite and Cryolite Chemical Formula

While comparing Apatite and Cryolite 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 Cryolite 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 Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Apatite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.97 whereas that of Cryolite is 2.97.