Nature CommunicationsOlivine and Fe-isotopes in kimberlites indicate an iron-rich substrate for CLIPPIR and other sub-lithospheric diamondsGeoffrey H. HowarthAndrea GiulianiMerrily M. TauRonghua CaiJingao Liu2026-04-18Full textDOI https://doi.org/10.1038/s41467-026-72060-0