Poudretteite and Proustite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.51-2.53
  
5.51-5.64
  
Fracture
Conchoidal, Splintery
  
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
None
  
Distinct on {10 1 1}
  
Mohs Hardness
5
  
2.5
  
Chemical Composition
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Poudretteite and Proustite Chemical Formula
While comparing Poudretteite and Proustite 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 Proustite chemical formula.
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Poudretteite and Proustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poudretteite and Proustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Proustite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 5.51-5.64 whereas that of Proustite is 5.51-5.64.