Corundum and Watermelon Tourmaline Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.90-3.40
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)
Cleavage
None – parting in 3 directions
Not Available
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Corundum and Watermelon Tourmaline Chemical Formula
While comparing Corundum and Watermelon Tourmaline 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 Watermelon Tourmaline chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Watermelon Tourmaline- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Corundum and Watermelon Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Watermelon Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Watermelon Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.90-3.40 whereas that of Watermelon Tourmaline is 2.90-3.40.