Depozite în Continente de Est
Asia
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China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
Africa
Namibia, Uganda
Egypt, Ethiopia, Ghana, South Africa
Europa
Germany, Hungary, Italy, Portugal, Spain
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
Depozite în Continente de Vest
America de Nord
USA
Canada, Cuba, Jamaica, USA
America de Sud
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Bolivia, Brazil, Colombia, Ecuador, Paraguay
Depozite în Oceania Continent
Australia
New Zealand, Western Australia
New South Wales, New Zealand, Western Australia