Pectolite and Cassiterite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.90
  
6.86-7.03
  
Fracture
Uneven, Gemstones (2009), Splintery
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Cleavage
Perfect on {100} and {001}
  
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Mohs Hardness
4.5-5
  
6-7
  
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
  
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Pectolite and Cassiterite Chemical Formula
While comparing Pectolite 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 Pectolite and Cassiterite chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pectolite and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.