Grahampearsonite, Ca2P2O7, a new mineral found in a super-deep diamond from Juína, Brazil. - Wang, Yanjuan; Nestola, Fabrizio; Day, Maxwell C.; Jalowitzki, Tiago; Rodrigues, Eduardo Novais; Gervasoni, Fernanda; Cedeño, Daniel Grings; Silva, Sebastião William da; Fuck, Reinhardt Adolfo; Nava, Jacopo; Santello, Lisa; Pamato, Martha G.; et al. (American Mineralogist, 2026)