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