Schorl and Cassiterite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.18-3.22
  
6.86-7.03
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Cleavage
{1011} Indistinct
  
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Mohs Hardness
Not Available
  
6-7
  
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Schorl and Cassiterite Chemical Formula
While comparing Schorl 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 Schorl and Cassiterite chemical formula.
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Schorl and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.