Afrika
South Africa, Tanzania
Not Yet Found
Eropah
Germany, Greece, Italy, Scotland, Turkey
Bulgaria
lain
antarctica, tanah penggembalaan
belum menemukan
Amerika Utara
Canada, USA
USA
Amerika Selatan
Argentina, Brazil, Kolumbia, venezuela
belum menemukan
deposito di oceania benua
Australia
Central Australia, New Zealand, Queensland, Western Australia
Not Yet Found