3484 Whitmoreite, Jahnsite, Palermo #1 Mine, North Groton, Grafton Co., New Hampshire, USA October 3, 2019 Steve New Hampshire North and Central Americas United States
North and Central Americas South Dakota United States ncat JP328, Jahnsite, Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA September 23, 2019
New Hampshire North and Central Americas United States 5507 Jahnsite, Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA October 5, 2019
North and Central Americas South Dakota United States ncat JP339, Whitmoreite, Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA September 23, 2019
New Hampshire North and Central Americas United States 4633 Whitmoreite, Strunzite, Rockbridgeite, Siderite, Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA October 5, 2019
