Afrika
South Africa, Tanzania
Namibia, Uganda
Eropah
Germany, Greece, Italy, Scotland, Turkey
Germany, Hungary, Italy, Portugal, Spain
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
New Zealand, Western Australia