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lepersonnite

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Journal Article
Published: 01 May 1982
The Canadian Mineralogist (1982) 20 (2): 231–238.
Journal Article
Published: 01 April 1983
American Mineralogist (1983) 68 (3-4): 456–458.
...). The mineral is optically biaxial positive, γ = 1.760 (parallel to c , fiber axis), β = 1.658 and α = 1.640. Metastudtite is associated with uranophane, kasolite and hydrated uranium-lead oxides. Metastudtite is compared with studtite and lepersonnite. Copyright © 1983 by the Mineralogical Society of America...
Journal Article
Published: 24 May 2023
Mineralogical Magazine (2023) 87 (4): 568–574.
... and Classification of the International Mineralogical Association (IMA–CNMNC, Pasero, 2023 ): lepersonnite-(Gd) CaGd 2 (UO 2 ) 24 (SiO 4 ) 4 (CO 3 ) 8 (OH) 24 ⋅48H 2 O, a rare REE-uranyl carbonate from the Shinkolobwe U deposit in the DR Congo (Deliens and Piret, 1982 ). This mineral, however, contains...
FIGURES
Journal Article
Published: 01 February 2022
Mineralogical Magazine (2022) 86 (1): 178–182.
... IMA No. 2021-066 Lepersonnite-(Nd) Lps-Nd Nd 4 (UO 2 ) 24 (SiO 4 ) 4 (CO 3 ) 8 (OH) 28 ⋅48H 2 O Swambo deposit, 36 km west of Shinkolobwe, near Mindigi mine, Kambove District, Haut-Katanga, Democratic Republic of the Congo (11°05′43″ S, 26°13′23″ E) Jakub Plášil*, Anthony R. Kampf...
Journal Article
Published: 03 April 2023
American Mineralogist (2023) 108 (4): 754–768.
... new minerals. A detailed structural study, which is necessary for its approval by the IMA-CNMNC, will be the subject of our future investigation. To date, lepersonnite-(Gd), which is a rare REE-uranyl carbonate from the Shinkolobwe U deposit in the DR Congo ( Deliens and Piret 1982 ), represents...
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Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 653–660.
...) ( Deliens and Piret, 1986 ), is one of the five uranyl carbonates containing rare-earth elements ( REE ) known from Nature as supergene alteration products of uraninite. Related minerals are bijvoetite-(Y) ( Deliens and Piret, 1982 ), lepersonnite-(Nd) ( Deliens and Piret, 1982 ), shabaite-(Nd) ( Deliens...
FIGURES
Journal Article
Published: 01 February 2000
The Canadian Mineralogist (2000) 38 (1): 153–162.
... Republic of Congo, by Deliens & Piret (1982) . It is associated with lepersonnite, sklodowskite, curite, uranophane, becquerelite, rutherfordine, studtite, and oursinite. Deliens & Piret (1982) reported that bijvoetite-(Y) is orthorhombic, space groups C 2 ma , Cm 2 b , or Cmma , a 21.223(3...
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Journal Article
Published: 01 February 2015
Mineralogical Magazine (2015) 79 (1): 33–49.
... with essential Gd, while lepersonnite-(Gd) is the only one known to date. Conversely, D is at a maximum of 21.7 for Te, an extremely rare element for which only seven species are predicted, while 158 are known. The significance of this measure, and of these extreme values, is emphasized by the fact...
FIGURES
Journal Article
Published: 01 February 2006
American Mineralogist (2006) 91 (2-3): 333–336.
... in the current study are from specimen RC3934 from l’Institute Royal des Sciences Naturelles in Brussels, Belgium. The specimen is from the Shinkolobwe mine in Democratic Republic of Congo, and contains mostly lepersonnite-(Gd) as well as bec-querelite, curite, uranophane, sklodowskite, and oursinite...
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Journal Article
Published: 01 June 1987
The Canadian Mineralogist (1987) 25 (2): 353–377.
...-(Y) Huanghoite-(Ce) Hydroxyl-bastniisite-(Ce) Iimoriite-(Y) Ilimaussite-(Ce) Joaquinite-(Ce) Kainosite-(Y) Karnasurtite-(Ce) Keivyite-(Yb) Kobeite-(Y) Kusuite-(Ce) Lanthanite-(La) 375 376 THE CANADIAN MINERALOCIST Lanthanite-(Ce) Lanthanite-(Nd) Laplandite Lepersonnite Lokkaite Loparite Loranskite...
Journal Article
Published: 21 October 2022
The Canadian Mineralogist (2022) 60 (5): 731–758.
... in its stoichiometric mineral formula is known to date: penzhinite, (Ag,Cu) 4 Au(S,Se) 4 , which is only known from a single occurrence (the Sergeevskoye Au-Ag occurrence, Penzhina River, Penzhina Bay, Kamchatka Krai, Russia). Lepersonnite-(Gd) and mineevite-(Y) are the only “true” endemic minerals...
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Journal Article
Published: 01 April 2016
American Mineralogist (2016) 101 (4): 889–906.
... (CO 3 ) 8 Si 4 O 28 ·60H 2 O lepersonnite-(Gd) [CaGd(UO 2 ) 24 (CO 3 ) 8 Si 4 O 28 ·60H 2 O] CaLa(UO 2 ) 24 (CO 3 ) 8 Si 4 O 28 ·60H 2 O Hydrous yttrium/Rare earth element carbonates NaLa(CO 3 ) 3 ·6H 2 O adamsite-(Y) [NaY(CO 3 ) 3 ·6H 2 O] NaCe(CO 3 ) 3 ·6H 2 O Na 3 La(CO 3 ) 3...
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Journal Article
Published: 11 September 2020
Mineralogical Magazine (2020) 84 (5): 629–639.
... processes . Journal of Petrology , 54 , 525 – 537 . https://doi.org/10.1093/petrology/egs076 Deliens M. and Piret P. ( 1982 ) Bijvoetite et lepersonnite, carbonates hydratés d'uranyle et de terres rares de Shinkolobwe, Zaïre . The Canadian Mineralogist , 20 , 231 – 238...
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Series: Short Courses
Published: 01 January 2013
DOI: 10.3749/9780921294689.ch03
EISBN: 978-0-921294-68-9
... (1983) as a supergene mineral in the Shinkolobwe deposit in DR Congo (Africa), where it occurs together with other uranyl minerals, including soddyite, kasolite, schoepite, sklodowskite, torbernite, lepersonnite-(Gd), bijvoetite-(Y) and curite. From its chemical composition, Deliens & Piret (1983...
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