Arkansas North and Central Americas United States 1316 Kidwellite, Beraunite, York No.2 Mine, Polk Co, Arkansas, USA September 22, 2019
Alabama North and Central Americas United States 7166 JL2237, Strengite, Cacoxenite, Kidwellite, Rockbridgeite, Variscite, Indian Mountain, Cherokee Co., Alabama, USA September 23, 2019
Alabama North and Central Americas United States 5554 Kidwellite, Indian Mountain, Cherokee Co., Alabama, USA March 23, 2018
Australasia Australia New South Wales 2621 Kidwellite, Tsumebite, Dufrenite, Block 14 Open Cut, South Mine, Broken Hill, New South Wales October 3, 2019