Stibiotantalite and Rubellite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
Not Available
3.01-3.06
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{???} Perfect
Not Available
Mohs Hardness
5.5-6
7-7.5
Chemical Composition
SbTaO 4Ulrich Henn and Claudio C.
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.
Stibiotantalite and Rubellite Chemical Formula
While comparing Stibiotantalite and Rubellite 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 Stibiotantalite and Rubellite chemical formula.
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
- Chemical formula of Rubellite- 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.
Stibiotantalite and Rubellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.