Apatite and Hackmanite Physical Properties

Apatite

Hackmanite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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

2.27-2.33

Perfect

5.5-6

Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Apatite and Hackmanite Chemical Formula

While comparing Apatite and Hackmanite 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 Hackmanite chemical formula.

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Apatite and Hackmanite Specific Gravity

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