Apatite and Gyrolite Physical Properties

Apatite

Gyrolite

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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

3.16-3.232.48

1 7.18

1.5 Fracture

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

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Perfect on {001}

1.7 Mohs Hardness

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

NaCa16Si23AlO60(OH)8•64(H2O)

Apatite and Gyrolite Chemical Formula

While comparing Apatite and Gyrolite 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 Gyrolite 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 Gyrolite- NaCa16Si23AlO60(OH)8•64(H2O)

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Apatite and Gyrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Gyrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Gyrolite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.48 whereas that of Gyrolite is 2.48.