Proustite and Apophyllite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.51-5.64
  
2.30-2.50
  
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Distinct on {10 1 1}
  
Perfect on (001)
  
Mohs Hardness
2.5
  
4.5-5
  
Chemical Composition
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  
Proustite and Apophyllite Chemical Formula
While comparing Proustite and Apophyllite 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 Proustite and Apophyllite chemical formula.
- Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Proustite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Proustite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Proustite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Proustite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.