Wulfenite and Apatite Physical Properties

Wulfenite

Apatite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

6.50-7.003.16-3.23

1 7.18

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Fracture

Irregular, Conchoidal

Conchoidal, Uneven, Conchoidal to uneven

Cleavage

On {011}, distinct; on {001}, {013}, indistinct

[0001] indistinct, [1010] indistinct

Mohs Hardness

2 10

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Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

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

Wulfenite and Apatite Chemical Formula

While comparing Wulfenite and Apatite 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 Wulfenite and Apatite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
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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Wulfenite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.