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Articles | Volume 17, issue 3
Articles | Volume 17, issue 3
https://doi.org/10.5194/se-17-601-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-601-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 3
Research article
 | 
02 Apr 2026
Research article |  | 02 Apr 2026

High-pressure behaviour and elastic constants of 1M and 2M1 polytypes of phlogopite KMg3Si3AlO10(OH)2

Gianfranco Ulian, Francesca Ranellucci, and Giovanni Valdrè

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Short summary
Layer silicates (phyllosilicates) are important minerals because of their ubiquity on the Earth’s crust and due to their ability to release water in the mantle. The present study focuses on the elastic properties of a specific phyllosilicate known as phlogopite [KMg3Si3AlO10(OH)2], which were characterised using first-principles methods. The results show the mineral's anisotropic mechanical behaviour, which also depends on how the mineral layers are stacked in the crystal structure.
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