Depozite în Continente de Est
Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
India, Russia
Africa
Cameroon, East Africa, Tanzania, Western Africa
South Africa
Europa
United Kingdom
Germany, Greece, Italy, Scotland, Turkey
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, USA
America de Sud
Bolivia, Brazil, Colombia, Ecuador
Brazil, Colombia, Venezuela
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Western Australia
New Zealand, Queensland