Apatite and Kurnakovite Physical Properties

Apatite

Kurnakovite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.231.847-1.852

1 7.18

1.5 Fracture

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

Brittle, Conchoidal

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Poor to indistinct on {010}

1.7 Mohs Hardness

52-3

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

Not Available

Apatite and Kurnakovite Chemical Formula

While comparing Apatite and Kurnakovite 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 Kurnakovite 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

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Apatite and Kurnakovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Kurnakovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Kurnakovite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 1.847-1.852 whereas that of Kurnakovite is 1.847-1.852.