Apatite and Thomsonite Physical Properties
Specific Gravity
3.16-3.23
2.25-2.40
Fracture
Conchoidal, Uneven, Conchoidal to uneven
-
Cleavage
[0001] indistinct, [1010] indistinct
perfect on {010}; good on {100}
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apatite and Thomsonite Chemical Formula
While comparing Apatite and Thomsonite 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 Thomsonite 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 Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apatite and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.