Cinnabar and Apatite Physical Properties
Tenacity
Slightly sectile
Not Available
Solubility
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Not Available
Durability
Not Available
Not Available
Specific Gravity
2
3.16-3.23
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Prismatic {10 1 0}, perfect
[0001] indistinct, [1010] indistinct
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Cinnabar and Apatite Chemical Formula
While comparing Cinnabar 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 Cinnabar and Apatite chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Cinnabar and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Apatite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.16-3.23 whereas that of Apatite is 3.16-3.23.