Spinel and Indicolite Blue Tourmaline Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
3.05-3.11
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
Cleavage
None, but may exhibit slight parting
Not Available
Chemical Composition
MgAl2O4
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.
Spinel and Indicolite Blue Tourmaline Chemical Formula
While comparing Spinel and Indicolite Blue 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 Spinel and Indicolite Blue Tourmaline chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Indicolite Blue 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.
Spinel and Indicolite Blue Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Indicolite Blue Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Indicolite Blue Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.05-3.11 whereas that of Indicolite Blue Tourmaline is 3.05-3.11.