Physical Form
Solid, Flat, Clear, Plate-shaped Crystal
Melting Temperature
2000C (3632F)
Density
3.8 g/cm^3
Hardness
9 Mohs Scale; 2100 Knoop Scale
Water Solubility
Insoluble
Color
White
Typical Analysis
Al2O3 Na2O Fe2O3 SiO2 TiO2 Other
99.59% 0.35% 0.03% 0.03% -- --