Depozite în Continente de Est
Asia
Russia, Turkey
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
Africa
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Europa
Germany, Greece, Iceland, Norway, Poland
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Alții
nu a fost încă găsite
antarctica, insulele hawaii
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, Costa Rica, Panama, USA
America de Sud
Brazil
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Depozite în Oceania Continent
Australia
South Australia, Western Australia
Central Australia, Western Australia