Prehnite and Anorthite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.77
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Distinct on [001]
Perfect [001] good [010] poor [110]
Mohs Hardness
6-6.5
6-6.5
Chemical Composition
Ca2Al2Si3O12(OH)
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Prehnite and Anorthite Chemical Formula
While comparing Prehnite 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 Prehnite and Anorthite chemical formula.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Prehnite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prehnite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.77 whereas that of Anorthite is 2.77.