Erythrite and Marialite Physical Properties
Tenacity
Sectile
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06
  
2.50
  
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
  
Distinct on {100} and {110}
  
Mohs Hardness
Not Available
  
5.5-6
  
Chemical Composition
Co3(AsO4)2•8(H2O)
  
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
  
Erythrite and Marialite Chemical Formula
While comparing Erythrite and Marialite 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 Erythrite and Marialite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Erythrite and Marialite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.50 whereas that of Marialite is 2.50.