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