deposito di benua timur
  
  
Asia
China, India
  
Not Yet Found
  
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
  
Uganda
  
Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
  
Germany, Hungary, Italy, Spain
  
lain
belum menemukan
  
tanah penggembalaan, mid-Atlantik ridge
  
deposito di benua Barat
  
  
Amerika Utara
Canada, USA
  
USA
  
Amerika Selatan
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
  
Bolivia, Brazil
  
deposito di oceania benua
  
  
Australia
Central Australia, Queensland, Western Australia
  
New South Wales, New Zealand, Queensland, South Australia, Western Australia