Hardystonite and Cassiterite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.396-3.443
  
6.86-7.03
  
Fracture
Brittle, Metallic
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Cleavage
[001] good, [100] and [110] fair
  
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Mohs Hardness
3-4
  
6-7
  
Chemical Composition
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
  
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Hardystonite and Cassiterite Chemical Formula
While comparing Hardystonite 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 Hardystonite and Cassiterite chemical formula.
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hardystonite and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hardystonite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hardystonite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Hardystonite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.