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