Labradorite and Anorthite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
2.77
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Perfect [001] good [010] poor [110]
Mohs Hardness
6-6.5
6-6.5
Chemical Composition
(Na,Ca)1-2Si3-2O8
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Labradorite and Anorthite Chemical Formula
While comparing Labradorite and Anorthite 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 Anorthite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Labradorite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.77 whereas that of Anorthite is 2.77.