deposito di benua timur
Asia
Japan, Turkey
-
Afrika
Egypt, Ethiopia, South Africa
Uganda
Eropah
France, Greece, Iceland
Germany, Hungary, Italy, Spain
lain
-
tanah penggembalaan, mid-Atlantik ridge
deposito di benua Barat
Amerika Utara
USA
USA
Amerika Selatan
-
Bolivia, Brazil
deposito di oceania benua
Australia
New Zealand
New South Wales, New Zealand, Queensland, South Australia, Western Australia