Chlorastrolite and Apatite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1-3.5
  
3.16-3.23
  
Fracture
Granular
  
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
  
Cleavage
Not Available
  
[0001] indistinct, [1010] indistinct
  
Mohs Hardness
5-6
  
5
  
Chemical Composition
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
  
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
  
Chlorastrolite and Apatite Chemical Formula
While comparing Chlorastrolite 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 Chlorastrolite and Apatite chemical formula.
- Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chlorastrolite and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Chlorastrolite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.