Vivianite and Fire Agate Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.70
  
2.60-2.64
  
Fracture
(e.g. graphite).
  
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{010} Perfect
  
Absent
  
Mohs Hardness
Not Available
  
6.5-7
  
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
SiO 2Arthur Thomas , Gemstones (2009)
  
Vivianite and Fire Agate Chemical Formula
While comparing Vivianite and Fire Agate 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 Fire Agate chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Fire Agate- SiO 2Arthur Thomas , Gemstones (2009)
Vivianite and Fire Agate Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Fire Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Fire Agate Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.60-2.64 whereas that of Fire Agate is 2.60-2.64.