8017 Villiaumite, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada October 5, 2019 Steve Canada North and Central Americas ex Bernie and Margaret Day Collection. ex C. Peat 1997
Denmark Europe 5653 Naujakasite, Villiaumite, Aegirine, Sodalite, Kvanefjeld Uranium deposit, Kuannersuit Plateau (Kvanefjeld), Ilimaussaq complex, Narsaq, Kujalleq, Greenland, Denmark April 25, 2023
Africa Namibia Type Locality 8514 Villiaumite, Tuperssuatsiaite, Ellingsenite, Unnamed Fe Analogue of Zakharovite, Aegirine, Albite, Nepheline, Aris Quarries, Aris, Windhoek Rural, Khomas Region, Namibia July 25, 2020
Africa Namibia 2196 Ellingsenite, Tuperssuatsiaite, Villiaumite, Aegirine, Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek District, Khomas Region, Namibia September 22, 2019
Denmark Europe 5654 Monazite, Naujakasite, Villiaumite, Aegirine, Sodalite, Kvanefjeld Uranium deposit, Kuannersuit Plateau (Kvanefjeld), Ilimaussaq complex, Narsaq, Kujalleq, Greenland, Denmark October 5, 2019