| Reference Type | Journal (article/letter/editorial) |
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| Title | Sediment-Hosted Rare-Earth Elements Mineralization from the Dian-Qian District, Southwest China: Mineralogy and Mode of Occurrence |
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| Journal | Minerals |
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| Authors | Hui, Bo | Author |
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| Gong, Daxing | Author |
| Xu, Lu | Author |
| Lai, Yang | Author |
| Qin, Jianhua | Author |
| Xu, Ying | Author |
| Yang, Wei | Author |
| Lin, Haitao | Author |
| Year | 2024 | Volume | < 14 > |
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| Issue | < 9 > |
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| URL | |
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| DOI | doi:10.3390/min14090903Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 17569554 | Long-form Identifier | mindat:1:5:17569554:8 |
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| GUID | 0 |
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| Full Reference | Hui, Bo, Gong, Daxing, Xu, Lu, Lai, Yang, Qin, Jianhua, Xu, Ying, Yang, Wei, Lin, Haitao (2024) Sediment-Hosted Rare-Earth Elements Mineralization from the Dian-Qian District, Southwest China: Mineralogy and Mode of Occurrence. Minerals, 14 (9). doi:10.3390/min14090903 |
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| Plain Text | Hui, Bo, Gong, Daxing, Xu, Lu, Lai, Yang, Qin, Jianhua, Xu, Ying, Yang, Wei, Lin, Haitao (2024) Sediment-Hosted Rare-Earth Elements Mineralization from the Dian-Qian District, Southwest China: Mineralogy and Mode of Occurrence. Minerals, 14 (9). doi:10.3390/min14090903 |
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| In | Link this record to the correct parent record (if possible) |
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| Abstract/Notes | The Xuanwei Formation’s claystones in the Dian-Qian District of Southwest China are rich in rare-earth elements (REEs), suggesting their potential as a source of medium and heavy rare earths. However, the REE content in these rocks is lower than other types of rare-earth deposits, and the interrelationship among clay minerals is intricate. There is no direct evidence indicating the mineralization of REEs, limiting their beneficiation and extraction. The objective of this study is the characterization of REE distribution in the Dian-Qian District. The sedimentary rocks in this district are mainly composed of kaolinite, boehmite, quartz, rutile, and pyrite. The results of continuous chemical extraction of REE-rich claystone and transmission electron microscope (TEM) observations have confirmed that REEs occurred as florencite in the rocks, and that the ion-absorption state makes only a negligible contribution to the REE content. A close relationship between florencite and kaolinite makes traditional mineral processing operations very difficult. Combined with the properties of kaolinite, roasting-acid leaching was the efficacious approach for rare-earth resources extracted from the rare earth-rich clay rocks of the Xuanwei Formation. |
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