Ludlamite and Tantalite Physical Properties
Specific Gravity
3.1-3.2
5.2
Fracture
-
Subconchoidal, Conchoidal
Cleavage
Vitreous, pearly on cleavage
Good in one direction
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Ludlamite and Tantalite Chemical Formula
While comparing Ludlamite 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 Ludlamite and Tantalite chemical formula.
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Ludlamite and Tantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 5.2 whereas that of Tantalite is 5.2.