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Apatite and Sugilite Physical Properties


Sugilite 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   
2.69-2.79   

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

Cleavage
[0001] indistinct, [1010] indistinct   
Poor on {0001}   

Mohs Hardness
5   
5.5-6.5   

Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references   
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Apatite and Sugilite Chemical Formula

While comparing Apatite and Sugilite 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 Sugilite chemical formula.

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Apatite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.

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