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
  
Not Yet Found
  
Africa
Cameroon, Cape Verde, Chad, Djibouti, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Uganda
  
Not Yet Found
  
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
  
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
  
Alții
antarctica, insulele hawaii
  
nu a fost încă găsite
  
Depozite în Continente de Vest
  
  
America de Nord
Canada, Costa Rica, Panama, USA
  
Canada
  
America de Sud
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador
  
Bolivia, Colombia
  
Depozite în Oceania Continent
  
  
Australia
Central Australia, Western Australia
  
Central Australia, South Australia, Western Australia