Stolzite and Faustite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2
  
2.9
  
Fracture
Conchoidal, Uneven, Brittle
  
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
  
Cleavage
Imperfect on {001}, indistinct on {011}
  
{???} Indistinct
  
Mohs Hardness
2.5-3
  
4.5
  
Chemical Composition
Not Available
  
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Stolzite and Faustite Chemical Formula
While comparing Stolzite and Faustite 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 Stolzite and Faustite chemical formula.
>- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Stolzite and Faustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Stolzite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stolzite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Stolzite is 2.9 whereas that of Faustite is 2.9.