Faustite and Pyrargyrite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.9
  
5.85
  
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
  
Cleavage
{???} Indistinct
  
Distinct on {10 1 1}, imperfect on {01 1 2}
  
Mohs Hardness
4.5
  
2.5-3
  
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Faustite and Pyrargyrite Chemical Formula
While comparing Faustite and Pyrargyrite 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 Faustite and Pyrargyrite chemical formula.
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Faustite and Pyrargyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Pyrargyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Pyrargyrite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 5.85 whereas that of Pyrargyrite is 5.85.