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New Hampshire North and Central Americas United States 4634 Stewartite, Mitridatite, Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA October 5, 2019
Europe Germany 2219 Stewartite, Strunzite, Rockbridgeite, Mitridatite, Hagendorf-Sud, Bavaria, Germany September 22, 2019
