Asia
India, Russia
Not Yet Found
Afrika
South Africa
Ethiopia, Ghana, Western Africa
Eropah
Germany, Greece, Italy, Scotland, Turkey
England
lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
Argentina, Bolivia, uruguay
deposito di oceania benua
Australia
New Zealand, Queensland
Central Australia, South Australia, Western Australia