Corundum and Datolite Physical Properties
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.90-3.00
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
None – parting in 3 directions
None
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Corundum and Datolite Chemical Formula
While comparing Corundum and Datolite 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 Datolite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Corundum and Datolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Datolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Datolite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.90-3.00 whereas that of Datolite is 2.90-3.00.