Physical Form
Blocky, solid, angular
Melting Temperature
2000C (3632F)
Density
3.8 g/cm^3
Hardness
9 Mohs Scale; 2100 Knoop Scale
Water Solubility
Insoluble
Color
Light Brown, Tan
Typical Analysis
Al2O3 Na2O Fe2O3 SiO2 TiO2 Other
96.12% 0.02% 0.11% 0.67% 2.70% 0.40%