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
Cornwall England United Kingdom ncat JP1660 Beraunite, Rockbridgeite, Gravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK October 8, 2019
Australasia Australia Victoria ncat JP2839 Pharmacosiderite, Rockbridgeite, Gravel Hill quarry, Ascot Hills, Dookie, City of Greater Shepparton, Victoria September 23, 2019
Alabama North and Central Americas United States 7166 JL2237, Strengite, Cacoxenite, Kidwellite, Rockbridgeite, Variscite, Indian Mountain, Cherokee Co., Alabama, USA September 23, 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
