Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
-
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Uganda
Eropah
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic
Germany, Hungary, Italy, Spain
lain
-
tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
Canada, USA
USA
Amerika Selatan
-
Bolivia, Brazil
deposito di oceania benua
Australia
-
New South Wales, New Zealand, Queensland, South Australia, Western Australia