Erythrite and Nosean Physical Properties
Tenacity
Sectile
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06
  
2.30-2.40
  
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
  
{110} Perfect
  
Mohs Hardness
Not Available
  
Not Available
  
Chemical Composition
Co3(AsO4)2•8(H2O)
  
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
  
Erythrite and Nosean Chemical Formula
While comparing Erythrite and Nosean 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 Nosean chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
Erythrite and Nosean Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Nosean Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.30-2.40 whereas that of Nosean is 2.30-2.40.