Apatite and Narsarsukite Physical Properties

Apatite

Narsarsukite

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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

3.16-3.232.72-2.83

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Good on {100} and {110}

1.7 Mohs Hardness

56-7

2 10

1.8 Chemical Composition

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

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Apatite and Narsarsukite Chemical Formula

While comparing Apatite and Narsarsukite 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 Narsarsukite 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 Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Apatite and Narsarsukite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Narsarsukite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Narsarsukite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.72-2.83 whereas that of Narsarsukite is 2.72-2.83.