5486 Cowlesite, Big Tree Creek, Yacolt, Clark Co., Washington October 2, 2019 Steve North and Central Americas United States Washington
Co. Antrim Northern Ireland United Kingdom 1616 Cowlesite, Parkgate Quarry, Ballysclare, Co. Antrim, Northern Ireland September 22, 2019
Co. Antrim Northern Ireland United Kingdom 0647 Levyne, Cowlesite, Offretite, Dunseverick, Giants Causeway, Co. Antrim, Northern Ireland September 20, 2019
