Hercynite and Cassiterite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.39
  
6.86-7.03
  
Fracture
ConchoidalGemdat.org, Uneven
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Mohs Hardness
7.5-8
  
6-7
  
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Hercynite and Cassiterite Chemical Formula
While comparing Hercynite 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 Hercynite and Cassiterite chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hercynite and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.