Precious Opal and Apatite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
3.16-3.23
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Not Available
[0001] indistinct, [1010] indistinct
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Precious Opal and Apatite Chemical Formula
While comparing Precious Opal 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 Precious Opal and Apatite chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Precious Opal and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Apatite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 3.16-3.23 whereas that of Apatite is 3.16-3.23.