Depozite în Continente de Est
Asia
India, Saudi Arabia, Singapore, South Korea
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Africa
Ethiopia, Western Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Europa
England, Georgia, Switzerland, United Kingdom
England, France, Germany, Spain, United Kingdom
Depozite în Continente de Vest
America de Nord
Canada
Canada, USA
America de Sud
Colombia
Colombia
Depozite în Oceania Continent
Australia
Central Australia, New South Wales, New Zealand, Western Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula