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Apatite and Galena Physical Properties


Galena and Apatite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.16-3.23   
6.23   

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

Cleavage
[0001] indistinct, [1010] indistinct   
Cubic perfect on [001], parting on [111]   

Mohs Hardness
5   
2.5-2.75   

Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references   
PbS   

Optical Properties >>
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Apatite and Galena Chemical Formula

While comparing Apatite and Galena 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 Galena chemical formula.

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Apatite and Galena Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Galena Optical Properties during the identification of gemstone. Specific gravity of Apatite is 6.23 whereas that of Galena is 6.23.

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