deposito di benua timur
  
  
Asia
Not Yet Found
  
Not Yet Found
  
Afrika
Uganda
  
Not Yet Found
  
Eropah
Germany, Hungary, Italy, Spain
  
France, Greece, Romania, Scotland, Spain
  
lain
tanah penggembalaan, mid-Atlantik ridge
  
belum menemukan
  
deposito di benua Barat
  
  
Amerika Utara
USA
  
USA
  
Amerika Selatan
Bolivia, Brazil
  
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
  
deposito di oceania benua
  
  
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
  
New Zealand, South Australia, Western Australia