4974 Vesignieite, Volborthite, Green Monster Mine, Kearsarge, Kearsarge District [2], Inyo Mts (Inyo Range), Inyo Co., California, USA October 5, 2019 Steve California North and Central Americas United States Al Wilkins
England United Kingdom 4301 Volborthite, New Cliffe Hill Quarry, Stanton Under Bardon, Leicestershire, England October 5, 2019
England Leicestershire United Kingdom 4414 Zalesiite, Vesigneite, New Cliffe Hill Quarry, Stanton Under Bardon, Leicestershire, England October 5, 2019
Arizona North and Central Americas United States 1452 Volborthite, Monument Valley, Navajo Co, Arizona, USA July 14, 2021
Australasia Australia South Australia 5712 Atacamite, Gypsum, Volborthite, Sweet Nell (Ironstone Lagoon), Ironstone Lagoon, Stuart Shelf, South Australia August 26, 2020
