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