Depozite în Continente de Est
Asia
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China, India, Kazakhstan, Mongolia, Russia
Africa
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Namibia, Nigeria, South Africa
Europa
Bulgaria, England, Germany, Norway, Romania, Switzerland
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
Alții
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Depozite în Continente de Vest
America de Nord
USA
Canada, USA
America de Sud
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
Brazil, Venezuela
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New South Wales, New Zealand