Apatite and Bornite Physical Properties

Apatite

Bornite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.23

5.06-5.08

1.5 Fracture

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

Uneven, Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Poor on [111].

1.7 Mohs Hardness

3-3.25

1.8 Chemical Composition

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

Cu5FeS4

Apatite and Bornite Chemical Formula

While comparing Apatite and Bornite 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 Bornite 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 Bornite- Cu5FeS4

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Apatite and Bornite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Bornite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 5.06-5.08 whereas that of Bornite is 5.06-5.08.