Hibschite and Apatite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.08
  
3.16-3.23
  
Fracture
Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle
  
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
  
Cleavage
None
  
[0001] indistinct, [1010] indistinct
  
Mohs Hardness
6.5
  
5
  
Chemical Composition
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
  
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
  
Hibschite and Apatite Chemical Formula
While comparing Hibschite 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 Hibschite and Apatite chemical formula.
- Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Hibschite and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibschite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibschite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Hibschite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.