Arkansas North and Central Americas United States 4876 Delindeite, Labuntsovite-Mn, Diamond Jo Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA Type Locality for Delindeite, October 5, 2019
Canada North and Central Americas 8099 Labuntsovite-Mn, Poudrette quarry, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada ex Bernie and Margaret Day Collection October 5, 2019