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