Color is colorless, white, pale violet to lavender. Luster is adamantine. Crystals are transparent to translucent. Crystal Habits include cubic crystals that envelope boleite crystals and often completely replace them. Cleavage is absent.
Fracture is uneven.
Hardness is 3. Streak is white. Associated Minerals include boleite , matlockite , cerussite , anglesite , leadhillite and galena . Notable Occurrences include the type locality of Mammoth-St Anthony Mine, Tiger, Pinal County, Arizona , USA and Chile. Best Field Indicators are crystal habit, color, density, luster, lack of cleavage and locality.