deposito di benua timur
  
  
Asia
Russia
  
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
  
Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
  
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
  
Eropah
England, Hungary, Iceland, United Kingdom
  
United Kingdom
  
lain
antarctica, tanah penggembalaan
  
belum menemukan
  
deposito di benua Barat
  
  
Amerika Utara
Canada, Mexico, USA
  
USA
  
Amerika Selatan
Argentina, Kolumbia, Ekuador
  
Kolumbia
  
deposito di oceania benua
  
  
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
  
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula