Marialite and Fayalite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.50
  
4.392
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Distinct on {100} and {110}
  
{010} moderate, {100} imperfect
  
Mohs Hardness
5.5-6
  
6.5-7
  
Chemical Composition
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
  
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Marialite and Fayalite Chemical Formula
While comparing Marialite and Fayalite 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 Marialite and Fayalite chemical formula.
- Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Marialite and Fayalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Marialite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marialite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Marialite is 4.392 whereas that of Fayalite is 4.392.