Asia
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
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Afrika
Kenya, Morocco, South Africa, Tanzania
-
Eropah
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
France, Greece, Romania, Scotland, Spain
lain
tanah penggembalaan, mid-Atlantik ridge
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Amerika Utara
Canada, Mexico, USA
USA
Amerika Selatan
Bolivia, Brazil
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
deposito di oceania benua
Australia
New South Wales, Queensland, South Australia, Western Australia
New Zealand, South Australia, Western Australia