deposito's in het oosten van continenten
Azië
Bangladesh, China, India, Russia
China, India
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Morocco, Namibia
Europa
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Austria, Italy, Romania, Spain, Switzerland
deposito's in het westen van continenten
Noord Amerika
USA
Mexico, USA
Zuid-Amerika
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Brazil, Colombia
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Queensland, Victoria, Western Australia
New South Wales, Queensland, Yorke Peninsula