Corundum and Aragonite Physical Properties
Solubility
insoluble
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.93-2.96
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
None – parting in 3 directions
Distinct on {010}, imperfect {110} and {011}
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Corundum and Aragonite Chemical Formula
While comparing Corundum 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 Corundum and Aragonite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Corundum and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.