Labradorite and Tantalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
5.2
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Good in one direction
Mohs Hardness
6-6.5
6-6.5
Chemical Composition
(Na,Ca)1-2Si3-2O8
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Labradorite and Tantalite Chemical Formula
While comparing Labradorite 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 Labradorite and Tantalite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Labradorite and Tantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 5.2 whereas that of Tantalite is 5.2.