Oswaldpeetersite
Oswaldpeetersite is an IMA-recognized mineral species in the carbonate class, with the chemical formula (UO₂)₂(CO₃)(OH)₂·4H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/c).
Key properties: Mohs hardness 2–3; specific gravity 4.1; Pale yellow streak; Vitreous luster; optically biaxial.
IMA symbol Osw, IMA status: approved, named in 2000.
Found in a sedimentary Colorado-Plateau-type U–V deposit.
It is found associated with Gypsum, cuprite, antlerite, goethite, lepidocrocite, mbobomkulite, hydrombobomkulite, sklodowskite.
The mineral was named to honor Maurice Oswald Peeters (1945–), Catholic University of Leuven, Leuven, Belgium, structural crystallographer who has done research in uranium mineralogy.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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