Color is white, colorless, gray or yellowish. Luster is vitreous. Crystals are translucent. Crystal Habits include granular masses. Individual crystals are rare.
Cleavage is perfect in one direction.
Fracture is uneven. Streak is white. Associated Minerals include halite , polyhalite , carnallite , sylvite and other more rare evaporite minerals. Best Field Indicators are associations, cleavage, habit and environment of formation.