NaAlSi2O6Monoclinic
Jadeite
NaAlSi2O6
SilicatesChemical FormulaNaAlSi2O6
Crystal SystemMonoclinic
Mohs Hardness7
Specific Gravity3.34
ColorWhite, green, lavender, yellow, black
LusterVitreous to greasy
StreakWhite
CleavageTwo directions
FractureSplintery
Occurrence
Found in metamorphic rocks. One of two minerals called jade. Highly valued in East Asia.