Colemanite and Dumortierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.40-2.42
3.26-3.41
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
{010} Perfect, {001} Distinct
Distinct on {100}, poor on {110}; parting on {001}
Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
AlAl6O3BSi3O18
Colemanite and Dumortierite Chemical Formula
While comparing Colemanite and Dumortierite 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 Colemanite and Dumortierite chemical formula.
- Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Colemanite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Colemanite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Colemanite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Colemanite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.