Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Afrika
Angola, Egypt, Madagascar, Nigeria, South Africa
Kenya, Morocco, South Africa, Tanzania
Eropah
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
lain
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tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
Canada, USA
Canada, Mexico, USA
Amerika Selatan
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Bolivia, Brazil
deposito di oceania benua
Australia
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New South Wales, Queensland, South Australia, Western Australia