Onyx and Cassiterite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
6.86-7.03
Fracture
Not Available
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Cleavage
Indiscernible
{100} imperfect, {110} indistinct; partings on {111} or {011}
Chemical Composition
SiO2
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Cassiterite Chemical Formula
While comparing Onyx 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 Onyx and Cassiterite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.