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Apatite and Hodgkinsonite Physical Properties


Hodgkinsonite 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   
4.06-4.08   

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

Cleavage
[0001] indistinct, [1010] indistinct   
{???} Perfect   

Mohs Hardness
5   
4.5-5   

Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references   
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Apatite and Hodgkinsonite Chemical Formula

While comparing Apatite and Hodgkinsonite 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 Hodgkinsonite chemical formula.

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Apatite and Hodgkinsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Hodgkinsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Hodgkinsonite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 4.06-4.08 whereas that of Hodgkinsonite is 4.06-4.08.

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