Apatite and Gaspeite Physical Properties

Apatite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.23

3.71

1.5 Fracture

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

Uneven

1.6 Cleavage

[0001] indistinct, [1010] indistinct

{10 1 1} Good

1.7 Mohs Hardness

4.5-5

1.8 Chemical Composition

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

(Ni,Mg,Fe++)CO3

Apatite and Gaspeite Chemical Formula

While comparing Apatite and Gaspeite 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 Gaspeite 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 Gaspeite- (Ni,Mg,Fe++)CO3

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Apatite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.71 whereas that of Gaspeite is 3.71.