Depozite în Continente de Est
Asia
China, India
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand
Africa
Morocco, Namibia
Egypt, Ethiopia, Ghana, South Africa, Western Africa
Europa
Austria, Italy, Romania, Spain, Switzerland
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom
Depozite în Continente de Vest
America de Nord
Mexico, USA
Canada, USA
America de Sud
Brazil, Colombia
Colombia
Depozite în Oceania Continent
Australia
New South Wales, Queensland, Yorke Peninsula
Central Australia, New Zealand, Queensland