Grandidierite and Cancrinite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.00
  
2.42-2.52
  
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
Perfect
  
Perfect on {10 1 0}, poor on {0001}
  
Mohs Hardness
7.5
  
5-6
  
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
  
Grandidierite and Cancrinite Chemical Formula
While comparing Grandidierite 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 Grandidierite and Cancrinite chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Grandidierite and Cancrinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Cancrinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Cancrinite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.42-2.52 whereas that of Cancrinite is 2.42-2.52.