Cordierite and Scolecite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.57-2.66
  
2.20-2.23
  
Fracture
Subconchoidal, Conchoidal, Brittle
  
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
  
Cleavage
Fair on {100}, poor on {001} and {010}
  
Perfect on {110} and {1 1 0}
  
Mohs Hardness
7-7.5
  
5-5.5
  
Chemical Composition
Mg2Al4Si5O18
  
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
  
Cordierite and Scolecite Chemical Formula
While comparing Cordierite and Scolecite 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 Cordierite and Scolecite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Cordierite and Scolecite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.