deposito di benua timur
Asia
India, Russia
-
Afrika
South Africa
South Africa
Eropah
Germany, Greece, Italy, Scotland, Turkey
Finland, Norway, Portugal
lain
tanah penggembalaan, mid-Atlantik ridge
-
deposito di benua Barat
Amerika Utara
Canada, USA
Canada
Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
Brazil
deposito di oceania benua
Australia
New Zealand, Queensland
-