Shigaite and Apatite Physical Properties
Tenacity
Moderately flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.32
3.16-3.23
Fracture
Flexible Flexible fragments.
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Perfect on {0001}
[0001] indistinct, [1010] indistinct
Chemical Composition
Not Available
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Shigaite and Apatite Chemical Formula
While comparing Shigaite 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 Shigaite and Apatite chemical formula.
>- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Shigaite and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Shigaite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.