Xenotime-(Gd)
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| Xenotime-(Gd) | |
|---|---|
| General | |
| Category | Xenotime group |
| Formula (repeating unit) | Gd(PO4) |
| IMA symbol | Xtm-Gd[1] |
| Strunz classification | 8.AD.35 |
| Crystal system | Tetragonal |
| Identification | |
| Specific gravity | 5.26 g/cm3 (calculated) |
| References | [1] |
Xenotime-(Gd) is the gadolinium endpoint of Xenotime with the ideal formula Gd(PO4). It is one of the few known gadolinium-dominant rare earth minerals.
Discovery
[edit]Xenotime deposits rich in gadolinium were reported in 2023 from the Slovak Ore Mountains along with other rare earth minerals enriched in elements classified as medium rare earth elements (MREE).[2] The mineral species Xenotime-(Gd) was approved by the IMA in 2023,[3] a description of the mineral was described in 2024 from crystals found within gadolinium rich xenotime-(Y) sampled at the Zimná Voda quartz vein near Prakovce.[4] Besides yttrium, the examined type material bore further rare earth elements such as dysprosium, samarium and terbium.[4]
See also
[edit]References
[edit]- ^ a b Page Xenotime-(Gd): Mineral information, data and localities on "mindat.org". Hudson Institute of Mineralogy. Retrieved 2024-12-27.
- ^ Ondrejka M, Uher P, Ferenc S, Milovska S, Mikus T, Molnarova A, Skoda R, Kopacik R, Bacik P (2023-04-03). "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)". American Mineralogist. 108 (4): 754–768. doi:10.2138/am-2022-8418. Retrieved 2025-01-01.
- ^ Olds TA, Emproto C (2024-03-27). "New Mineral Names". American Mineralogist. 109 (4): 799–802. Bibcode:2024MinM...88..613O. doi:10.2138/am-2024-NMN10949. Retrieved 2024-12-27.
- ^ a b Ondrejka M, Bacik P, Majzlan J, Uher P, Ferenc S, Mikus T, Stevko M, Caplovicova M, Milovska S, Molnarova A, Rössler C, Matthes C (2024-11-14). "Xenotime-(Gd), a new Gd-dominant mineral of the xenotime group from the Zimná Voda REE–U–Au quartz vein, Prakovce, Western Carpathians, Slovakia". Mineralogical Magazine. 88 (5): 613–622. Bibcode:2024MinM...88..613O. doi:10.1180/mgm.2024.62. Retrieved 2024-12-27.
External links
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