Zincite and Cassiterite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.50-5.90
  
6.86-7.03
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Cleavage
On {10 1 0}, perfect; parting on {000 1 }
  
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Mohs Hardness
4
  
6-7
  
Chemical Composition
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Zincite and Cassiterite Chemical Formula
While comparing Zincite 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 Zincite and Cassiterite chemical formula.
- Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zincite and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zincite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Zincite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.