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Richard Kopáčik
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Journal Article

Secondary uranyl arsenates–phosphates and Sb–Bi-rich minerals of the segnitite–philipsbornite series in the oxidation zone at the Prakovce-Zimná Voda REE–U–Au quartz-vein mineralisation, Western Carpathians, Slovakia

Martin Ondrejka, Štefan Ferenc, Juraj Majzlan, Martin Števko, Richard Kopáčik, Bronislava Voleková, Stanislava Milovská, Jörg Göttlicher, Ralph Steininger, Tomáš Mikuš, Pavel Uher, Adrián Biroň, Jiří Sejkora, Alexandra Molnárová
Published: 04 October 2023
Mineralogical Magazine (2023) 87 (6): 849–865.
DOI: https://doi.org/10.1180/mgm.2023.75
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Monazite-(Gd), a new Gd-dominant mineral of the monazite group from the Zimná Voda REE–U–Au quartz vein, Prakovce, Western Carpathians, Slovakia

Martin Ondrejka, Pavel Uher, Štefan Ferenc, Juraj Majzlan, Kilian Pollok, Tomáš Mikuš, Stanislava Milovská, Alexandra Molnárová, Radek Škoda, Richard Kopáčik, Sergii Kurylo, Peter Bačík
Published: 24 May 2023
Mineralogical Magazine (2023) 87 (4): 568–574.
DOI: https://doi.org/10.1180/mgm.2023.37
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Gadolinium-dominant monazite and xenotime: Selective hydrothermal enrichment of middle REE during low-temperature alteration of uraninite, brannerite, and fluorapatite (the Zimná Voda REE-U-Au quartz vein, Western Carpathians, Slovakia)

Martin Ondrejka, Pavel Uher, Štefan Ferenc, Stanislava Milovská, Tomáš Mikuš, Alexandra Molnárová, Radek Škoda, Richard Kopáčik, Peter Bačík
Published: 03 April 2023
American Mineralogist (2023) 108 (4): 754–768.
DOI: https://doi.org/10.2138/am-2022-8418
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