deposito's in het oosten van continenten
Azië
Bangladesh, China, India, Russia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Europa
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
United Kingdom
deposito's in het westen van continenten
Noord Amerika
Canada, Panama, USA
USA
Zuid-Amerika
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Colombia
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Queensland, Victoria, Western Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula