Anorthite and Erythrite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.77
3.06
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Perfect [001] good [010] poor [110]
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
6-6.5
Not Available
Chemical Composition
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Co3(AsO4)2•8(H2O)
Anorthite and Erythrite Chemical Formula
While comparing Anorthite and Erythrite 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 Anorthite and Erythrite chemical formula.
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Anorthite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anorthite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 3.06 whereas that of Erythrite is 3.06.