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