Asia
-
China, India, Russia, Saudi Arabia, South Korea
Afrika
Uganda
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
Eropah
Germany, Hungary, Italy, Spain
England, Finland, France, Spain, United Kingdom
lain
tanah penggembalaan, mid-Atlantik ridge
-
Amerika Utara
USA
Canada, USA
Amerika Selatan
Bolivia, Brazil
Argentina, Kolumbia
deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
Central Australia, Western Australia