Cryolite and Apatite Physical Properties

Cryolite

Apatite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.973.16-3.23

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

None observed

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

2.55

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

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

Cryolite and Apatite Chemical Formula

While comparing Cryolite 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 Cryolite and Apatite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
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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Cryolite and Apatite Specific Gravity

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