ncat JP339, Whitmoreite, Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA September 23, 2019 Steve North and Central Americas South Dakota United States
North and Central Americas South Dakota United States 6074 Whitmoreite, Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA October 2, 2019
Cornwall England United Kingdom ncat JP1658 Strunzite, Whitmoreite, Gravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK October 8, 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
New Hampshire North and Central Americas United States 4533 Whitmoreite, Vivianite, Palermo #1 Mine, North Groton, Grafton Co., New Hampshire, USA October 5, 2019
