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Apatite and Hibschite Physical Properties


Hibschite and Apatite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.16-3.23   
3.05-3.08   

Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven   
Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle   

Cleavage
[0001] indistinct, [1010] indistinct   
None   

Mohs Hardness
5   
6.5   

Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references   
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Apatite and Hibschite Chemical Formula

While comparing Apatite and Hibschite 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 Hibschite chemical formula.

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Apatite and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.

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