deposito di benua timur
  
  
Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
  
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
  
Afrika
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
  
Kenya, Morocco, South Africa, Tanzania
  
Eropah
Bulgaria, England, Germany, Norway, Romania, Switzerland
  
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
  
lain
belum menemukan
  
tanah penggembalaan, mid-Atlantik ridge
  
deposito di benua Barat
  
  
Amerika Utara
USA
  
Canada, Mexico, USA
  
Amerika Selatan
Argentina, Bolivia, Brazil, Chili, Kolumbia, Ekuador, peru
  
Bolivia, Brazil
  
deposito di oceania benua
  
  
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
  
New South Wales, Queensland, South Australia, Western Australia