Erythrite and Creedite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
2.70
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Perfect on {100}
Mohs Hardness
Not Available
4.5
Chemical Composition
Co3(AsO4)2•8(H2O)
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Erythrite and Creedite Chemical Formula
While comparing Erythrite and Creedite 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 Creedite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Erythrite and Creedite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.70 whereas that of Creedite is 2.70.