Gypsum and Apatite Physical Properties
Tenacity
Flexible
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.20-2.40
3.16-3.23
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Perfect on {010}, distinct on {100}
[0001] indistinct, [1010] indistinct
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Gypsum and Apatite Chemical Formula
While comparing Gypsum and Apatite 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 Gypsum and Apatite chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Gypsum and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Apatite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.16-3.23 whereas that of Apatite is 3.16-3.23.