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
Australasia Australia Queensland 7393 JL1798 Mordenite, Mount Hay, Wycarbah, Rockhampton Region, Queensland December 29, 2020
New Mexico North and Central Americas United States 5792 Sanidine, Mordenite, Seco Creek, Caballo, Sierra Co., New Mexico, USA July 18, 2022
Buchan Grampian Scotland United Kingdom 4854 Mordenite, Tod Head Point, Catterline, Stonehaven, Buchan Grampian, Scotland, UK October 5, 2019
