Vishnevite and Faustite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.9
  
Fracture
Brittle, Uneven
  
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
  
Cleavage
Perfect
  
{???} Indistinct
  
Mohs Hardness
5-6
  
4.5
  
Chemical Composition
Not Available
  
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Vishnevite and Faustite Chemical Formula
While comparing Vishnevite 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 Vishnevite and Faustite chemical formula.
>- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Vishnevite and Faustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vishnevite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 2.9 whereas that of Faustite is 2.9.