Cassiterite and Fire Opal Physical Properties
Specific Gravity
6.86-7.03
1.97-2.22
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
None
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Cassiterite and Fire Opal Chemical Formula
While comparing Cassiterite and Fire Opal 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 Cassiterite and Fire Opal chemical formula.
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Cassiterite and Fire Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cassiterite and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.