5486 Cowlesite, Big Tree Creek, Yacolt, Clark Co., Washington October 2, 2019 Steve North and Central Americas United States Washington
Australasia New Zealand ncat JP3249 Cowlesite, Levyne, Lyttelton Harbour Board Quarry, Lyttelton, Christchurch City, Canterbury Region, South Island, New Zealand October 8, 2019
Co. Antrim Northern Ireland United Kingdom 1616 Cowlesite, Parkgate Quarry, Ballysclare, Co. Antrim, Northern Ireland September 22, 2019
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
