deposito di benua timur
  
  
Asia
China, India
  
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
  
Afrika
Morocco, Namibia
  
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
  
Eropah
Austria, Italy, Romania, Spain, Switzerland
  
Bulgaria, England, Germany, Norway, Romania, Switzerland
  
lain
belum menemukan
  
belum menemukan
  
deposito di benua Barat
  
  
Amerika Utara
Mexico, USA
  
USA
  
Amerika Selatan
Brazil, Kolumbia
  
Argentina, Bolivia, Brazil, Chili, Kolumbia, Ekuador, peru
  
deposito di oceania benua
  
  
Australia
New South Wales, Queensland, Yorke Peninsula
  
New South Wales, New Zealand, Queensland, South Australia, Western Australia