Rutile and Poudretteite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Insoluble in acids
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.20-4.30
  
2.51-2.53
  
Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Conchoidal, Splintery
  
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
  
None
  
Mohs Hardness
6-6.5
  
5
  
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Rutile and Poudretteite Chemical Formula
While comparing Rutile and Poudretteite 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 Rutile and Poudretteite chemical formula.
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Rutile and Poudretteite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rutile and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.