Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Uganda
Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Germany, Hungary, Italy, Spain
lain
-
tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
Canada, USA
USA
Amerika Selatan
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
Bolivia, Brazil
deposito di oceania benua
Australia
Central Australia, Queensland, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia