Franklinite and Apatite Physical Properties

Franklinite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

5.05-5.22

Uneven

None

5.5-6

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

3.16-3.23

Conchoidal, Uneven, Conchoidal to uneven

[0001] indistinct, [1010] indistinct

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

Franklinite and Apatite Chemical Formula

While comparing Franklinite 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 Franklinite and Apatite chemical formula.

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Franklinite and Apatite Specific Gravity

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