Gahnite and Anorthite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
2.77
Fracture
Conchoidal, Uneven
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Indistinct parting on [111]
Perfect [001] good [010] poor [110]
Mohs Hardness
7.5-8
6-6.5
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Gahnite and Anorthite Chemical Formula
While comparing Gahnite 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 Gahnite and Anorthite chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Gahnite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.77 whereas that of Anorthite is 2.77.