Azurite and Erythrite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.70-3.90
3.06
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Perfect on {011}, fair on {100}, poor on {110}
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
3.5-4
Not Available
Chemical Composition
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Co3(AsO4)2•8(H2O)
Azurite and Erythrite Chemical Formula
While comparing Azurite and Erythrite 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 Azurite and Erythrite chemical formula.
- Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Azurite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Azurite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.06 whereas that of Erythrite is 3.06.