Scolecite and Vivianite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.23
  
2.64-2.70
  
Fracture
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
  
(e.g. graphite).
  
Cleavage
Perfect on {110} and {1 1 0}
  
{010} Perfect
  
Mohs Hardness
5-5.5
  
Not Available
  
Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
  
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
Scolecite and Vivianite Chemical Formula
While comparing Scolecite 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 Scolecite and Vivianite chemical formula.
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Scolecite and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scolecite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scolecite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Scolecite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.