5486 Cowlesite, Big Tree Creek, Yacolt, Clark Co., Washington October 2, 2019 Steve North and Central Americas United States Washington
Australasia Australia Victoria 5675 Cowlesite, Basalt quarry, Jindivick, Baw Baw Shire, Victoria June 28, 2020
Co. Antrim Northern Ireland United Kingdom 0635 Cowlesite, Dunseverick, Giants Causeway, Co. Antrim, Northern Ireland September 20, 2019
