Calcite and Anorthite Physical Properties
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.67-2.73
2.77
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
Perfect [001] good [010] poor [110]
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Calcite and Anorthite Chemical Formula
While comparing Calcite 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 Calcite and Anorthite chemical formula.
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Calcite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Calcite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.77 whereas that of Anorthite is 2.77.