deposito's in het oosten van continenten
Azië
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Europa
England, France, Germany, Spain, United Kingdom
United Kingdom
deposito's in het westen van continenten
Noord Amerika
Canada, USA
USA
Zuid-Amerika
Colombia
Colombia
deposito's in Oceanië continent
Australië
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula