Cordierite and Cancrinite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
2.42-2.52
Fracture
Subconchoidal, Conchoidal, Brittle
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Fair on {100}, poor on {001} and {010}
Perfect on {10 1 0}, poor on {0001}
Chemical Composition
Mg2Al4Si5O18
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Cordierite and Cancrinite Chemical Formula
While comparing Cordierite and Cancrinite 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 and Cancrinite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Cordierite and Cancrinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Cancrinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Cancrinite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.42-2.52 whereas that of Cancrinite is 2.42-2.52.