Chalcedony and Apatite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.16-3.23
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Absent
[0001] indistinct, [1010] indistinct
Chemical Composition
SiO2
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chalcedony and Apatite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Apatite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chalcedony and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Apatite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 3.16-3.23 whereas that of Apatite is 3.16-3.23.