Allanite and Cancrinite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.40-4.20
2.42-2.52
Fracture
Not Available
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Not Available
Perfect on {10 1 0}, poor on {0001}
Mohs Hardness
Not Available
5-6
Chemical Composition
Not Available
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Allanite and Cancrinite Chemical Formula
While comparing Allanite 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 Allanite and Cancrinite chemical formula.
>- Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Allanite and Cancrinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Allanite and Cancrinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Allanite and Cancrinite Optical Properties during the identification of gemstone. Specific gravity of Allanite is 2.42-2.52 whereas that of Cancrinite is 2.42-2.52.