Crystals are translucent to opaque. Crystal Habits include tabular square crystals dominated by two pinacoid faces. Also as crusts, micaceous, foliated and earthy. Almost all meta-uranocircite crystals are pseudomorphs of uranocircite . Cleavage is perfect in one direction.
Fracture is uneven.
Streak is a pale yellow. Radioactive, fluorescent green and cleavage sheets are surprisingly brittle. Some meta-uranocircite is found in petrified wood in Arizona. Best Field Indicators are color, crystal habit, fluorescence, higher density than uranocircite , radioactivity, associations, cleavage and brittle cleavage sheets.