Spriggite

{{Infobox mineral

| name = Spriggite

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| category = Uranyl hydroxide mineral

| formula = Pb₃(UO₂)₆O₈(OH)₂·3H₂O

| IMAsymbol = Sgg{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3 |pages=291–320|doi=10.1180/mgm.2021.43 |bibcode=2021MinM...85..291W |s2cid=235729616 |doi-access=free}}

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| strunz = 4.GC.15

| system = Monoclinic

| class = Prismatic (2/m)
(same H-M symbol)

| symmetry = C2/c

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| color = bright orange

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| cleavage = distinct/ good on (100)

| fracture = irregular/ uneven

| tenacity = brittle

| mohs = 4

| luster = vitreous

| streak = pale orange

| diaphaneity = transparent

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| references = [http://www.mindat.org/min-25685.html Mindat][http://webmineral.com/data/Spriggite.shtml Webmineral data]

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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).{{Cite web |last=Minerals |first=Dakota Matrix |title=Spriggite mineral information and data |url=https://www.dakotamatrix.com/mineralpedia/8963/spriggite |access-date=2025-06-05 |website=www.dakotamatrix.com |language=en}}