Spriggite
(repeating unit)Pb3(UO2)6O8(OH)2·3H2O IMA symbol Sgg[1] Strunz classification 4.GC.15 Crystal system Monoclinic Crystal class Prismatic (2/m)
(same H-M symbol) Space group C2/c Identification Color bright orange Cleavage distinct/ good on (100) Fracture irregular/ uneven Tenacity brittle Mohs scale hardness 4 Luster vitreous Streak pale orange Diaphaneity transparent References [2][3]
(same H-M symbol)
Spriggite is an uranyl hydroxide mineral with chemical formula Pb3(UO2)6O8(OH)2·3H2O. Its type locality is Mt Painter region, Arkaroola region, Flinders Ranges, South Australia. It was named after Reginald C. Sprigg (1919–1994).
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