Asia
India, Russia
China, India
Afrika
South Africa
Namibia
Eropah
Germany, Greece, Italy, Scotland, Turkey
Italy, Spain
lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
Amerika Utara
Canada, USA
Not Yet Found
Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
belum menemukan
deposito di oceania benua
Australia
New Zealand, Queensland
New South Wales, New Zealand, Queensland, Victoria