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