Erythrite and Cuprite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
5.85-6.15
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Fair in four directions forming octahedrons
Mohs Hardness
Not Available
3.5-4
Chemical Composition
Co3(AsO4)2•8(H2O)
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Erythrite and Cuprite Chemical Formula
While comparing Erythrite and Cuprite 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 Cuprite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Erythrite and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.