Villiaumite and Apatite Physical Properties

Villiaumite

Apatite

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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

2.793.16-3.23

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

{100} Perfect, {010} Perfect, {001} Perfect

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

NaFUlrich Henn and Claudio C.

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

Villiaumite and Apatite Chemical Formula

While comparing Villiaumite 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 Villiaumite and Apatite chemical formula.

Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Gems Found in America

Villiaumite Vs Witherite

Villiaumite Vs Xonotlite

Villiaumite Vs Zincite

Villiaumite and Apatite Specific Gravity

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