Afrika
South Africa
East Africa, Western Africa
Eropah
Germany, Greece, Italy, Scotland, Turkey
England, Romania, Scotland
lain
tanah penggembalaan
belum menemukan
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Brazil, Kolumbia, venezuela
belum menemukan
deposito di oceania benua
Australia
New Zealand, Queensland
Central Australia, Western Australia