Kentucky North and Central Americas United States 0988 Millerite on Quartz, Halls Gap, Kentucky, USA September 20, 2019
Australasia Australia Western Australia ncat JP3388 Putnisite, Millerite, Quartz, Armstrong Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia September 23, 2019
United Kingdom Wales ncat JP1550 Millerite, Margam Opencast Mine, Cefn Cribwr, Bridgend, Wales, UK April 2, 2024
Europe Spain 4756 Millerite, Bellmunt del Priorat, Priorat, Tarragona, Catalonia, Spain October 5, 2019
