Apatite and Hauyne Physical Properties

Apatite

Hauyne

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Gelatinises in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.232.4-2.5

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Brittle

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Distinct on {110}

1.7 Mohs Hardness

55-6

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,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Apatite and Hauyne Chemical Formula

While comparing Apatite and Hauyne 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 Hauyne 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 Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

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Apatite and Hauyne Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Hauyne Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Hauyne Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.4-2.5 whereas that of Hauyne is 2.4-2.5.