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