Asia
India, Russia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Eropah
Germany, Greece, Italy, Scotland, Turkey
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela
lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
belum menemukan
deposito di oceania benua
Australia
New Zealand, Queensland
Not Yet Found