Precious Opal and Cassiterite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
6.86-7.03
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Cleavage
Not Available
{100} imperfect, {110} indistinct; partings on {111} or {011}
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Precious Opal and Cassiterite Chemical Formula
While comparing Precious Opal and Cassiterite 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 Cassiterite chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Precious Opal and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.