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Dellens, Michel, Piret, Paul (1979) Ranunculite, AlH(UO2)(PO4)(OH)3 · 4H2O, a new mineral. Mineralogical Magazine, 43 (327) 321-323 doi:10.1180/minmag.1979.043.327.01

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Reference TypeJournal (article/letter/editorial)
TitleRanunculite, AlH(UO2)(PO4)(OH)3 · 4H2O, a new mineral
JournalMineralogical MagazineISSN0026-461X
AuthorsDellens, MichelAuthor
Piret, PaulAuthor
Year1979 (September)Volume43
Issue327
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_43/43-327-321.pdf+
DOIdoi:10.1180/minmag.1979.043.327.01Search in ResearchGate
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Mindat Ref. ID3036Long-form Identifiermindat:1:5:3036:0
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Full ReferenceDellens, Michel, Piret, Paul (1979) Ranunculite, AlH(UO2)(PO4)(OH)3 · 4H2O, a new mineral. Mineralogical Magazine, 43 (327) 321-323 doi:10.1180/minmag.1979.043.327.01
Plain TextDellens, Michel, Piret, Paul (1979) Ranunculite, AlH(UO2)(PO4)(OH)3 · 4H2O, a new mineral. Mineralogical Magazine, 43 (327) 321-323 doi:10.1180/minmag.1979.043.327.01
In(1979, September) Mineralogical Magazine Vol. 43 (327) Mineralogical Society
Abstract/NotesRanunculite occurs as gold-yellow nodules. Mean diameter = 0.3 mm. Optically biaxial negative, 2V (calc.) = 56°. γ =1.670, β = 1.664, and α = 1.643. Monoclinic, pseudo-orthorhombic with a = 11.1 Å, b = 17.7 Å, c = 18.0 Å, and β ⋍ 90°. Z = 14. Measured density = 3.4 g/cm3. Calculated density = 3.39 g/cm3. The strongest lines of the X-ray powder pattern are (d, hkl, I): 9.00, 002–020 (100), 3.133, 330 (80), 470, 202–220 (50), 2.978, 006–060 (40), and 1.850, 600 (40). Chemical analysis by electron microprobe: Al2O3 9.9%, UO3 54.5%, P2O5 13.2%, H2O by thermogravimetry 20.3%. Formula: AlH(UO2)(PO4)(OH)3 · 4H2O. Ranunculite occurs at Kobokobo, Kivu, Zaïre, in pegmatitic rocks. The name after the colour (ranunculus = buttercup).

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Kobokobo pegmatite, Mwenga Territory, South Kivu, DR Congo

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Ranunculite

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LocalityMineral(s)
Kobokobo pegmatite, Mwenga Territory, South Kivu, DR Congoⓘ Ranunculite

See Also

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Deliens, Michel, Piret, Paul, Deliens, Michel, Piret, Paul (1978) La phurcalite, Ca2(UO2)3(PO4)2(OH)4·4H2O, nouveau minéral. Bulletin de Minéralogie, 101 (3) 356-358 doi:10.3406/bulmi.1978.7197
Moore, Paul B., Ito, Jun (1978) Kidwellite, NaFe93+(OH)10(PO4)6·5H2O, a new species. Mineralogical Magazine, 42 (321) 137-140 doi:10.1180/minmag.1978.042.321.21
Van Tassel, R., Fransolet, A.-M., Abraham, K. (1979) Drugmanite, Pb2(Fe3+,Al) (PO4)2(OH) · H2O, a new mineral from Richelle, Belgium. Mineralogical Magazine, 43 (328) 463-467 doi:10.1180/minmag.1979.043.328.03
Henderson, Paul (1979) Irregularities in patterns of element partition. Mineralogical Magazine, 43 (327) 399-404 doi:10.1180/minmag.1979.043.327.13
Walenta, Kurt (1979) New data for cuprotungstite. Mineralogical Magazine, 43 (327) 448-450 doi:10.1180/minmag.1979.043.327.26
Deliens, Michel, Piret, Paul (1979) Les phosphates d'uranyle et d'aluminium de Kobokobo. II. La phuralumite Al2(UO2)3(PO4)2(OH)6·10H2O et l'upalite Al(UO2)3(PO4)2(OH)3, nouveaux minéraux. Bulletin de Minéralogie, 102 (4) 333-337 doi:10.3406/bulmi.1979.7326
Alwan, A. K., Williams, P. A. (1979) Nickeloan hydrozincite: a new variety. Mineralogical Magazine, 43 (327) 397-398 doi:10.1180/minmag.1979.043.327.12
Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel, Piret, Paul, Deliens, Michel, Piret-Meunier, Jacqueline, Germain, Gabriel (1983) La sayrite, (Pb2[(UO2)5O6(OH)2]·4H2O, nouveau minéral ; propriétés et structure cristalline. Bulletin de Minéralogie, 106 (3) 299-304 doi:10.3406/bulmi.1983.7709
Vergouwen, Lideke (1979) Two new occurrences and the Gibbs energy of burkeite. Mineralogical Magazine, 43 (327) 341-345 doi:10.1180/minmag.1979.043.327.05
Williams, S. A. (1979) Rajite, naturally occurring cupric pyrotellurite, a new mineral. Mineralogical Magazine, 43 (325) 91-92 doi:10.1180/minmag.1979.043.325.02
Seager, A. F. (1979) The origin of a tetrahedral diamond. Mineralogical Magazine, 43 (327) 377-387 doi:10.1180/minmag.1979.043.327.10
 
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