Tantalite and Phenakite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.2
2.90-2.98
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
Good in one direction
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
6-6.5
7.5-8
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tantalite and Phenakite Chemical Formula
While comparing Tantalite and Phenakite 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 Tantalite and Phenakite chemical formula.
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tantalite and Phenakite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tantalite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.