Apatite and Orthoclase Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.16-3.23
2.54-2.61
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Gems, Uneven
Cleavage
[0001] indistinct, [1010] indistinct
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apatite and Orthoclase Chemical Formula
While comparing Apatite and Orthoclase 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 Orthoclase 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 Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apatite and Orthoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.