Eropah
Germany, Greece, Italy, Scotland, Turkey
France, Greece, Romania, Scotland, Spain
lain
tanah penggembalaan, mid-Atlantik ridge
-
Amerika Utara
Canada, USA
USA
Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
deposito di oceania benua
Australia
New Zealand, Queensland
New Zealand, South Australia, Western Australia