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Apatite
Apatite

Shigaite
Shigaite



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Apatite
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Shigaite

Apatite and Shigaite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.16-3.23
Conchoidal, Uneven, Conchoidal to uneven
[0001] indistinct, [1010] indistinct
5
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4

Apatite and Shigaite Chemical Formula

While comparing Apatite and Shigaite 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 Shigaite chemical formula.

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Apatite and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite Vs Shigaite during the identification of gemstone. Specific gravity of Apatite is whereas that of Shigaite is .