Depozite în Continente de Est
Asia
Bangladesh, China, India, Russia
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Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
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Europa
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Bulgaria, England, Germany, Norway, Romania, Switzerland
Alții
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Depozite în Continente de Vest
America de Nord
USA
USA
America de Sud
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia