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
  
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
  
Africa
Cameroon, Cape Verde, Chad, Djibouti, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Uganda
  
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
  
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
  
England, France, Germany, Spain, 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, USA
  
America de Sud
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador
  
Colombia
  
Depozite în Oceania Continent
  
  
Australia
Central Australia, Western Australia
  
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula