Apatite and Albite Physical Properties
Specific Gravity
3.16-3.23
2.60-2.65
Fracture
Conchoidal, Uneven, Conchoidal to uneven
Uneven, Conchoidal
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on {001}, very good on {010}, imperfect on {110}
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Apatite and Albite Chemical Formula
While comparing Apatite and Albite 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 Albite 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 Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Apatite and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Albite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.60-2.65 whereas that of Albite is 2.60-2.65.