Dumortierite and Aragonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
3.26-3.41
2.93-2.96
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
7-8.5
3.5-4
Chemical Composition
AlAl6O3BSi3O18
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dumortierite and Aragonite Chemical Formula
While comparing Dumortierite and Aragonite 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 Dumortierite and Aragonite chemical formula.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dumortierite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dumortierite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.