North and Central Americas United States West Virginia ncat JP1265, Harmotome, Pyrite, Sugar Grove, Pendleton Co., West Virginia, USA September 23, 2019
Powys United Kingdom Wales 5461 Ewaldite, Alstonite, Harmotome, Dolyhir Quarry, Old Radnor, Presteigne, Powys, Wales, UK October 2, 2019
Australasia Australia Tasmania 5736 Alstonite, Harmotome, Rosebery Mine (EZ Mine), Rosebery, Rosebery district, West Coast municipality, Tasmania March 31, 2021
England Northumberland United Kingdom 7374 JL2011 Harmotome, Barite, Settlingstones Mine, Newbrough, Northumberland, England, UK December 28, 2020