White Opal and Pyrite Physical Properties
Solubility
-
insoluble in water
Specific Gravity
1.98-2.50
5.00-5.20
Fracture
Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
None
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
5.5-6.5
6-6.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
White Opal and Pyrite Chemical Formula
While comparing White Opal and Pyrite 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 White Opal and Pyrite chemical formula.
- Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
White Opal and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is White Opal and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Pyrite Optical Properties during the identification of gemstone. Specific gravity of White Opal is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.