Chlorite group and Apatite Physical Properties

Chlorite group

Apatite

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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

2.6-3.33.16-3.23

1 7.18

1.5 Fracture

Lamellar

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

1.6 Cleavage

Perfect 001

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

2-2.55

2 10

1.8 Chemical Composition

Not Available

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

Chlorite group and Apatite Chemical Formula

While comparing Chlorite group 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 Chlorite group and Apatite 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

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Chlorite group and Apatite Specific Gravity

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