Rossmanite and Tantalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Fracture
Brittle, Metallic
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None
Good in one direction
Mohs Hardness
Not Available
6-6.5
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Rossmanite and Tantalite Chemical Formula
While comparing Rossmanite and Tantalite 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 Rossmanite and Tantalite chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Rossmanite and Tantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 5.2 whereas that of Tantalite is 5.2.