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Tourmaline
Tourmaline

Apatite
Apatite



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Tourmaline
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Apatite

Tourmaline and Apatite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.85-3.353.16-3.23
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
1.6 Cleavage
Indistinct
[0001] indistinct, [1010] indistinct
1.7 Mohs Hardness
7-7.55
Amber
2 10
1.8 Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Tourmaline and Apatite Chemical Formula

While comparing Tourmaline 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 Tourmaline and Apatite chemical formula.

  • Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
  • Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Tourmaline and Apatite Specific Gravity

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