Hello PIGs, Fernando Prado Araujo would like to share a DOI link to a pre-print of a paper on pegmatites: Paragenesis and precipitation stages of Nb-Ta-oxide minerals in phosphorus-rich rare-element pegmatites (Buranga dike, Rwanda) can be found at http://doi.org/10.2138/am-2022-8201 David London Learn about pegmatites and join the Pegmatite Interest Group at http://www.minsocam.org/msa/Special/Pig/