Corundum and Axinite Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
3.26-3.36
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None – parting in 3 directions
Good on {100}
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Corundum and Axinite Chemical Formula
While comparing Corundum and Axinite 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 Axinite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Corundum and Axinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Axinite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 3.26-3.36 whereas that of Axinite is 3.26-3.36.