KAlSi2O6Tetragonal
Leucite
KAlSi2O6
SilicatesChemical FormulaKAlSi2O6
Crystal SystemTetragonal
Mohs Hardness6
Specific Gravity2.48
ColorWhite, gray
LusterVitreous
StreakWhite
CleavageNone
FractureConchoidal
Occurrence
Found in potassium-rich volcanic rocks. Forms trapezohedron crystals.