Aragonite and Erythrite Physical Properties
Solubility
Dilute acid
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.93-2.96
3.06
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Distinct on {010}, imperfect {110} and {011}
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
3.5-4
Not Available
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Co3(AsO4)2•8(H2O)
Aragonite and Erythrite Chemical Formula
While comparing Aragonite 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 Aragonite and Erythrite chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Aragonite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.06 whereas that of Erythrite is 3.06.