Arkansas North and Central Americas United States 4936 Kupleskite, Aegirine, Analcime, Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA October 5, 2019
Co. Durham England United Kingdom 3593 Fluorapophyllite-(K), Analcime, Cambokeels Mine, Westgate, Stanhope, County Durham, England, UK February 23, 2025
