Elbaite and Cordierite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
2.57-2.66
Fracture
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Subconchoidal, Conchoidal, Brittle
Cleavage
Poor/indistinct on {1120} and {1011}
Fair on {100}, poor on {001} and {010}
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Mg2Al4Si5O18
Elbaite and Cordierite Chemical Formula
While comparing Elbaite and Cordierite 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 Elbaite and Cordierite chemical formula.
- Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
- Chemical formula of Cordierite- Mg2Al4Si5O18
Elbaite and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Elbaite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.