Cordierite Iolite and Grandidierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.56-2.66
2.85-3.00
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
Not Available
Perfect
Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Cordierite Iolite and Grandidierite Chemical Formula
While comparing Cordierite Iolite and Grandidierite 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 Cordierite Iolite and Grandidierite chemical formula.
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Cordierite Iolite and Grandidierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.