New Mexico North and Central Americas United States 5792 Sanidine, Mordenite, Seco Creek, Caballo, Sierra Co., New Mexico, USA July 18, 2022
Idaho North and Central Americas United States 30107 Heulandite-Ca, Mordenite, Rat’s Nest claim (Rat’s Nest mine), Challis, Bay Horse Mining District, Custer Co., Idaho, USA September 4, 2020
Buchan Grampian Scotland United Kingdom 4854 Mordenite, Tod Head Point, Catterline, Stonehaven, Buchan Grampian, Scotland, UK October 5, 2019
Australasia New Zealand ncat JP0254 Mordenite, 4th Branch, Tairua River, Hikuai, Thames-Coromandel District, Waikato Region, North Island, New Zealand October 8, 2019
