Vivianite and Nickeline Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.70
  
Not Available
  
Fracture
(e.g. graphite).
  
Conchoidal, Uneven
  
Cleavage
{010} Perfect
  
{1010} Imperfect, {0001} Imperfect
  
Mohs Hardness
Not Available
  
5-5.5
  
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
Not Available
  
Vivianite and Nickeline Chemical Formula
While comparing Vivianite and Nickeline 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 Nickeline chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
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Vivianite and Nickeline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Nickeline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Nickeline Optical Properties during the identification of gemstone. Specific gravity of Vivianite is Not Available whereas that of Nickeline is Not Available.