Erythrite and Dallasite Physical Properties
Tenacity
Sectile
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06
  
2.58-2.91
  
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
  
Not Available
  
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
  
Not Available
  
Mohs Hardness
Not Available
  
6.5-7
  
Chemical Composition
Co3(AsO4)2•8(H2O)
  
Not Available
  
Erythrite and Dallasite Chemical Formula
While comparing Erythrite and Dallasite 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 Dallasite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
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Erythrite and Dallasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.