Bornite and Apatite Physical Properties

Bornite

Apatite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.06-5.08

3.16-3.23

1.5 Fracture

Uneven, Subconchoidal, Conchoidal, Brittle

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

1.6 Cleavage

Poor on [111].

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

3-3.25

1.8 Chemical Composition

Cu5FeS4

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

Bornite and Apatite Chemical Formula

While comparing Bornite 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 Bornite and Apatite chemical formula.

Chemical formula of Bornite- Cu5FeS4
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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Bornite and Apatite Specific Gravity

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