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