ncat JP649, Vivianite, Wheeler Road, Oxon Hill, Prince Georges Co., Maryland, USA September 23, 2019 Steve Maryland North and Central Americas United States
New Hampshire North and Central Americas United States 4492 Vivianite, Palermo #1 Mine, North Groton, Grafton Co., New Hampshire, USA October 5, 2019
North and Central Americas South Dakota United States ncat JP336, Vivianite, Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA September 23, 2019
