Depozite în Continente de Est
Asia
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Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
Africa
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Cameroon, East Africa, Tanzania, Western Africa
Europa
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
United Kingdom
Depozite în Continente de Vest
America de Nord
Canada
Canada, USA
America de Sud
Bolivia, Colombia
Bolivia, Brazil, Colombia, Ecuador
Depozite în Oceania Continent
Australia
Central Australia, South Australia, Western Australia
New South Wales, New Zealand, Queensland, Western Australia