Sapphire and Vivianite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
2.64-2.70
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
(e.g. graphite).
  
Cleavage
None, but may exhibit parting
  
{010} Perfect
  
Mohs Hardness
9
  
Not Available
  
Chemical Composition
Al 2 O 3
  
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
Sapphire and Vivianite Chemical Formula
While comparing Sapphire and Vivianite 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 Sapphire and Vivianite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Sapphire and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.
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