Emerald and Vivianite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
2.64-2.70
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
(e.g. graphite).
  
Cleavage
Imperfect on the [0001]
  
{010} Perfect
  
Mohs Hardness
7.5-8
  
Not Available
  
Chemical Composition
Be3Al2SiO6
  
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
Emerald and Vivianite Chemical Formula
While comparing Emerald 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 Emerald and Vivianite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Emerald and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.
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