North and Central Americas United States Washington ncat JSM Analcime, Heulandite, Four Mile Quarry, Porter, Grays Harbor Co., Washington, USA November 12, 2021
Co. Antrim Northern Ireland United Kingdom 3831 Heulandite, Erionite, Dunseverick, Co. Antrim, Northern Ireland October 3, 2019
Australasia Australia Queensland ncat BDMAR01 M1423-3 Heulandite, Overburden Dump, Mary Kathleen Mine, Mary Kathleen district, Rosebud Station, Cloncurry Shire, Queensland April 7, 2024
