Erythrite and Cordierite Iolite Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
2.56-2.66
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Not Available
Mohs Hardness
Not Available
7-7.5
Chemical Composition
Co3(AsO4)2•8(H2O)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Erythrite and Cordierite Iolite Chemical Formula
While comparing Erythrite and Cordierite Iolite 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 Cordierite Iolite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Erythrite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.