Luster is vitreous or pearly to dull. 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.