Corundum and Marialite Physical Properties
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.50
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
None – parting in 3 directions
Distinct on {100} and {110}
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Corundum and Marialite Chemical Formula
While comparing Corundum and Marialite 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 Marialite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Corundum and Marialite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Marialite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.50 whereas that of Marialite is 2.50.