Sapphire and Apatite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.03
3.16-3.23
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
None, but may exhibit parting
[0001] indistinct, [1010] indistinct
Chemical Composition
Al 2 O 3
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Sapphire and Apatite Chemical Formula
While comparing Sapphire and Apatite 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 Sapphire and Apatite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Sapphire and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Apatite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.16-3.23 whereas that of Apatite is 3.16-3.23.
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