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