Depozite în Continente de Est
Asia
China, India
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Africa
Morocco, Namibia
Kenya, Morocco, South Africa, Tanzania
Europa
Austria, Italy, Romania, Spain, Switzerland
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Alții
-
Groenlanda, Dorsalei-atlantica
Depozite în Continente de Vest
America de Nord
Mexico, USA
Canada, Mexico, USA
America de Sud
Brazil, Colombia
Bolivia, Brazil
Depozite în Oceania Continent
Australia
New South Wales, Queensland, Yorke Peninsula
New South Wales, Queensland, South Australia, Western Australia