Depozite în Continente de Est
Asia
China, India, Indonesia, Russia, Singapore, South Korea
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Africa
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Europa
Albania, France, Germany, Great Britain, United Kingdom
United Kingdom
Depozite în Continente de Vest
America de Nord
Canada, USA
USA
America de Sud
Brazil, Colombia, Ecuador
Colombia
Depozite în Oceania Continent
Australia
New South Wales, South Australia, Western Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula