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