Vivianite and Hyalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.70
  
Not Available
  
Fracture
(e.g. graphite).
  
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Cleavage
{010} Perfect
  
Not Available
  
Mohs Hardness
Not Available
  
5.5-6.5
  
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Vivianite and Hyalite Chemical Formula
While comparing Vivianite and Hyalite 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 Hyalite chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Vivianite and Hyalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Hyalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Hyalite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is Not Available whereas that of Hyalite is Not Available.