Spriggite is an uranyl hydroxide mineral with chemical formula Pb<sub>3</sub>(UO<sub>2</sub>)<sub>6</sub>O<sub>8</sub>(OH)<sub>2</sub>÷3H<sub>2</sub>O. Its type locality is Mt Painter region, Arkaroola region, Flinders Ranges, South Australia. It was named after Reginald C. Sprigg (1919âÂÂ1994).