Andradite and Anorthite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.70-4.10
2.77
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
none
Perfect [001] good [010] poor [110]
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Andradite and Anorthite Chemical Formula
While comparing Andradite 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 Andradite and Anorthite chemical formula.
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Andradite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andradite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.77 whereas that of Anorthite is 2.77.