Apatite and Celestine Physical Properties
Specific Gravity
3.16-3.23
3.90-4.00
Fracture
Conchoidal, Uneven, Conchoidal to uneven
Conchoidal
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on {001}, good on {210}, poor on {010}
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apatite and Celestine Chemical Formula
While comparing Apatite and Celestine 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 Celestine 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 Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apatite and Celestine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.