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Apatite
Apatite

Caledonite
Caledonite



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Apatite
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Caledonite

Apatite and Caledonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.16-3.235.6-5.76
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
[0001] indistinct, [1010] indistinct
[001] perfect; [100] distinct
1.7 Mohs Hardness
52.5-3
Amber
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
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Apatite and Caledonite Chemical Formula

While comparing Apatite and Caledonite 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 Caledonite 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 Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Apatite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.