Vivianite and Jet Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.70
  
1.19-1.35
  
Fracture
(e.g. graphite).
  
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Cleavage
{010} Perfect
  
Not Available
  
Mohs Hardness
Not Available
  
2.5-4
  
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
Not Available
  
Vivianite and Jet Chemical Formula
While comparing Vivianite and Jet 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 Vivianite and Jet chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
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Vivianite and Jet Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Jet Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 1.19-1.35 whereas that of Jet is 1.19-1.35.