Direct spectroscopic evidence of increased stiffness in a series of similarly sized nanopolycrystalline diamond-lonsdaleite grains in Popigai impact diamonds (vol 240, 120350, 2025)

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The authors regret < p. 2, The sentence originally reading “According to Refs. 7, 8, 9, 10, an increase in lonsdaleite content …” should be corrected to “According to Refs. 6, 7, 8, 9 an increase in lonsdaleite content … “ Acknowledgments This study was supported by the Ministry of Science and Higher Education of the Russian Federation (Project FSWM-2025-0007: interpretation of the results and writing of the manuscript), and by the V.S. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences Russian Federation State Assignments with the following registration numbers 122041400312-2 (collection and processing of samples; writing the manuscript) and 122041400176-0 (spectroscopic study; interpretation of results). The authors thank V. V. Brazhkin for his valuable contributions to the discussions. The authors would like to apologise for any inconvenience caused. © 2025 Elsevier Ltd