Depozite în Continente de Est
  
  
Asia
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
  
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
  
Africa
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
  
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
  
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
  
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
  
Alții
antarctica, insulele hawaii
  
nu a fost încă găsite
  
Depozite în Continente de Vest
  
  
America de Nord
Canada, Costa Rica, Panama, USA
  
Canada, Mexico, USA
  
America de Sud
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
  
Brazil, Chile, Colombia, Venezuela
  
Depozite în Oceania Continent
  
  
Australia
Central Australia, Western Australia
  
New South Wales, Queensland, Victoria