Depozite în Continente de Est
Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
India, Saudi Arabia, Singapore, South Korea
Africa
Cameroon, East Africa, Tanzania, Western Africa
Ethiopia, Western Africa
Europa
United Kingdom
England, Georgia, Switzerland, United Kingdom
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada
America de Sud
Bolivia, Brazil, Colombia, Ecuador
Colombia
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Western Australia
Central Australia, New South Wales, New Zealand, Western Australia