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