Calcite and Erythrite Physical Properties
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.67-2.73
3.06
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
3
Not Available
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
Co3(AsO4)2•8(H2O)
Calcite and Erythrite Chemical Formula
While comparing Calcite 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 Calcite and Erythrite chemical formula.
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Calcite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Calcite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 3.06 whereas that of Erythrite is 3.06.