Co. Antrim Northern Ireland United Kingdom 0635 Cowlesite, Dunseverick, Giants Causeway, Co. Antrim, Northern Ireland September 20, 2019
Co. Antrim Northern Ireland United Kingdom 1616 Cowlesite, Parkgate Quarry, Ballysclare, Co. Antrim, Northern Ireland September 22, 2019
Australasia Australia Victoria ncat JP287 Cowlesite, Basalt quarry, Jindivick, Baw Baw Shire, Victoria August 6, 2022
Australasia New Zealand ncat JP3249 Cowlesite, Levyne, Lyttelton Harbour Board Quarry, Lyttelton, Christchurch City, Canterbury Region, South Island, New Zealand October 8, 2019