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