Cassiterite and Cinnabar Physical Properties
Tenacity
Brittle
Slightly sectile
Solubility
insoluble
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Durability
Not Available
Not Available
Specific Gravity
6.86-7.03
2
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Prismatic {10 1 0}, perfect
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cassiterite and Cinnabar Chemical Formula
While comparing Cassiterite and Cinnabar 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 Cinnabar chemical formula.
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cassiterite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cassiterite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2 whereas that of Cinnabar is 2.