Luster is vitreous to pearly. Crystals are translucent. Crystal System is monoclinic. Crystal Habits include prismatic to acicular crystals and globular aggregates and crusts. Cleavage is not observed.
Fracture is uneven.
Streak is green. Associated Minerals are pharmacosiderite , beudantite and other secondary arsenate minerals. Best Field Indicators are color, crystal habit, streak and associations.