Asia
China, India
Not Yet Found
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Not Yet Found
Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Bulgaria
lain
belum menemukan
belum menemukan
Amerika Utara
Canada, USA
USA
Amerika Selatan
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
belum menemukan
deposito di oceania benua
Australia
Central Australia, Queensland, Western Australia
Not Yet Found