Australasia New Zealand ncat JR10 Phillipsite-K, Erionite-K, Nontronite, Moeraki Point, Otago Region, New Zealand March 10, 2024
Colorado North and Central Americas United States ncat RAM4 CW11 Nontronite, Celadonite, Wolf Creek Pass, Archuleta County, Colorado, USA October 2, 2024
Australasia Australia Tasmania 1443 Nontronite, Siderite, Boral Quarry, Bridgewater, Tasmania September 22, 2019
