ncat JP348, Rockbridgeite, 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 Jack Nelson Collection
Australasia Australia Victoria ncat JP871 Rockbridgeite, Lake Boga granite quarry, Lake Boga, Swan Hill Rural City, Victoria September 23, 2019
New Hampshire North and Central Americas United States 3486 Whitlockite, Strunzite, Rockbridgeite, Palermo #1 Mine, North Groton, Grafton Co., New Hampshire, USA October 3, 2019
North and Central Americas South Dakota United States 4493 Rockbridgeite, Jahnsite-(CaMnFe), Tip Top Mine, Fourmile, Custer Co., South Dakota, USA October 5, 2019
