Apatite and Xenotime Physical Properties

Apatite

Xenotime

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.234.30-5.10

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Not Available

1.7 Mohs Hardness

54-5

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

YPO 4Ulrich Henn and Claudio C.

Apatite and Xenotime Chemical Formula

While comparing Apatite and Xenotime 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 Xenotime 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 Xenotime- YPO 4Ulrich Henn and Claudio C.

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Apatite and Xenotime Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Xenotime Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Xenotime Optical Properties during the identification of gemstone. Specific gravity of Apatite is 4.30-5.10 whereas that of Xenotime is 4.30-5.10.