European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 38, issue 2
Articles | Volume 38, issue 2
https://doi.org/10.5194/ejm-38-197-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Collection:
https://doi.org/10.5194/ejm-38-197-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 38, issue 2
Research article
 | 
20 Apr 2026
Research article |  | 20 Apr 2026

Selective uptake of rare earth elements and other cations in sector-zoned natural calcite as analogues for trivalent actinide behavior

Ferdinand Baumeister, Martin Kutzschbach, Martina Klinkenberg, Felix Brandt, and Thomas Neumann

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Short summary
This study shows that calcite can trap elements similar to radioactive substances very effectively under natural conditions. By studying a sample formed under nuclear-waste-repository-like conditions, it was found that certain crystal parts hold over 200 times more of these elements. This happens through multiple processes, helping to safely store harmful substances even in low-salt environments, which is important for nuclear waste safety.
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Experimental mineralogy, petrology, and geochemistry