Augelite and Apatite Physical Properties

Augelite

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

2.70-2.753.16-3.23

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

From the Greek for luster, for its pearly luster on the cleavage.

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

4.5-55

2 10

1.8 Chemical Composition

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Augelite and Apatite Chemical Formula

While comparing Augelite 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 Augelite and Apatite chemical formula.

Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Colorless Gems

Augelite Vs Black Opal

Augelite Vs Boracite

Augelite Vs Blue John

Augelite and Apatite Specific Gravity

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