Boracite and Cassiterite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Soluble
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.95-2.96
  
6.86-7.03
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Cleavage
None
  
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Mohs Hardness
7-7.5
  
6-7
  
Chemical Composition
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Boracite and Cassiterite Chemical Formula
While comparing Boracite 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 Boracite and Cassiterite chemical formula.
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Boracite and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Boracite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.