5486 Cowlesite, Big Tree Creek, Yacolt, Clark Co., Washington October 2, 2019 Steve North and Central Americas United States Washington
Australasia Australia Victoria ncat JP287 Cowlesite, Basalt quarry, Jindivick, Baw Baw Shire, Victoria August 6, 2022
Australasia Australia Victoria 0726 Levyne, Cowlesite, Calcite, Analcime, Jindivick, Victoria September 20, 2019
Co. Antrim Northern Ireland United Kingdom 0647 Levyne, Cowlesite, Offretite, Dunseverick, Giants Causeway, Co. Antrim, Northern Ireland September 20, 2019
North and Central Americas Oregon United States 1371 Cowlesite, Neer Road, Goble, Columbia Co., Oregon, USA September 22, 2019
