| Reference Type | Journal (article/letter/editorial) |
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| Title | Critical Metal Potential of Tasmanian Greisen: Lithium, Rare Earth Elements, and Bismuth Distribution and Implications for Processing |
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| Journal | Minerals |
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| Authors | Hunt, Julie | Author |
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| Oalmann, Jeffrey | Author |
| Aâtach, Mohamed | Author |
| Pirard, Eric | Author |
| Fulton, Russell | Author |
| Feig, Sandrin | Author |
| Year | 2025 | Volume | < 15 > |
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| Issue | < 5 > |
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| URL | |
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| DOI | doi:10.3390/min15050462Search 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 | 18351346 | Long-form Identifier | mindat:1:5:18351346:9 |
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| GUID | 0 |
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| Full Reference | Hunt, Julie; Oalmann, Jeffrey; Aâtach, Mohamed; Pirard, Eric; Fulton, Russell; Feig, Sandrin (2025) Critical Metal Potential of Tasmanian Greisen: Lithium, Rare Earth Elements, and Bismuth Distribution and Implications for Processing. Minerals, 15 (5). doi:10.3390/min15050462 |
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| Plain Text | Hunt, Julie; Oalmann, Jeffrey; Aâtach, Mohamed; Pirard, Eric; Fulton, Russell; Feig, Sandrin (2025) Critical Metal Potential of Tasmanian Greisen: Lithium, Rare Earth Elements, and Bismuth Distribution and Implications for Processing. Minerals, 15 (5). doi:10.3390/min15050462 |
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| In | Link this record to the correct parent record (if possible) |
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| Abstract/Notes | Typical greisen-type ore samples from northeastern Tasmania were investigated for their critical metal potential. The samples contain zinnwaldite (KLiFe2+Al(AlSi3O10)(F,OH)2), a lithium-bearing mica that is prone to excessive breakage during conventional processing, leading to the generation of very-fine-sized particles (i.e., slimes, <20 µm), eventually ending up in tailings and resulting in lithium (Li) loss. To assess whether the natural grain size of valuable minerals could be preserved, the samples were processed using electric pulse fragmentation (EPF). The results indicate that EPF preferentially fragmented along mica-rich veins, maintaining coarse grain sizes, although a lower degree of liberation was observed in fine-grained, massive samples. In addition, the critical metal distribution within zinnwaldite was examined using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) techniques. The results reveal differences in Li content between groundmass zinnwaldite and vein-hosted zinnwaldite and that the zinnwaldite contains the critical elements rubidium (Rb), cesium (Cs), and rare earth elements (REEs: La, Ce, Pr, and Nd). Vein-hosted zinnwaldite has a higher average Li content, whereas groundmass mica contains higher concentrations of Rb, Cs, and REEs. Both mica types host inclusions of bismuth–copper–thorium–arsenic (Bi-Cu-Th-As), which are more abundant in vein-hosted mica. In some of the samples, Bi, Cu, Th, and REEs also occur along the mica cleavage planes, as well as in mineral inclusions. The Li, Rb, and Cs grades are comparable to those of European deposits, such as Cínovec and the Zinnwald Lithium Project. |
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