Caledonite and Apatite Physical Properties

Caledonite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

5.6-5.76

Uneven

[001] perfect; [100] distinct

2.5-3

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

3.16-3.23

Conchoidal, Uneven, Conchoidal to uneven

[0001] indistinct, [1010] indistinct

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

Caledonite and Apatite Chemical Formula

While comparing Caledonite 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 Caledonite and Apatite chemical formula.

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Caledonite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite Vs Apatite during the identification of gemstone. Specific gravity of Caledonite is whereas that of Apatite is .