Apatite and Inderite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.16-3.23
  
1.79
  
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
  
Uneven
  
Cleavage
[0001] indistinct, [1010] indistinct
  
{110} Good
  
Mohs Hardness
5
  
2.5
  
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
  
MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Apatite and Inderite Chemical Formula
While comparing Apatite and Inderite 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 Inderite 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
- Chemical formula of Inderite- MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Apatite and Inderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Inderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Inderite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 1.79 whereas that of Inderite is 1.79.