Poudretteite and Strontianite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.51-2.53
  
3.63-3.79
  
Fracture
Conchoidal, Splintery
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
None
  
{110} Good
  
Mohs Hardness
5
  
3.5
  
Chemical Composition
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
  
SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
  
Poudretteite and Strontianite Chemical Formula
While comparing Poudretteite and Strontianite 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 Strontianite chemical formula.
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
Poudretteite and Strontianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poudretteite and Strontianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Strontianite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 3.63-3.79 whereas that of Strontianite is 3.63-3.79.