Sillimanite and Cancrinite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
2.42-2.52
Fracture
Splintery
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{010} perfect
Perfect on {10 1 0}, poor on {0001}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Sillimanite and Cancrinite Chemical Formula
While comparing Sillimanite 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 Sillimanite and Cancrinite chemical formula.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Sillimanite and Cancrinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sillimanite and Cancrinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Cancrinite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.42-2.52 whereas that of Cancrinite is 2.42-2.52.