Asia
India, Russia
Not Yet Found
Afrika
South Africa
Uganda
Eropah
Iceland
Germany, Hungary, Italy, Spain
lain
belum menemukan
tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
Canada, USA
USA
Amerika Selatan
Brazil
Bolivia, Brazil
deposito di oceania benua
Australia
Not Yet Found
New South Wales, New Zealand, Queensland, South Australia, Western Australia