Czech Republic ncat JP2606 Dundasite, Modra stola, Zlate Hory, Olomouc Region, Czech Republic October 11, 2019
New Mexico North and Central Americas United States 4598 Dundasite, Rosasite, Juanita Mine, Magdalena, Socorro Co., New Mexico, USA May 13, 2018
Cornwall England United Kingdom 3592 Dundasite, Greystones Quarry, Lezant, Cornwall, England October 3, 2019
Australasia Australia Tasmania ncat VHD4, Crocoite, Dundasite, Adelaide Mine, Dundas, Tasmania November 17, 2019