Poldervaartite and Tantalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.91
5.2
Fracture
Handbook of mineralogy (2001)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None
Good in one direction
Mohs Hardness
Not Available
6-6.5
Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Poldervaartite and Tantalite Chemical Formula
While comparing Poldervaartite 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 Poldervaartite and Tantalite chemical formula.
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Poldervaartite and Tantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poldervaartite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 5.2 whereas that of Tantalite is 5.2.