Asia
China, India
China, India
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Morocco, Namibia
Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Austria, Italy, Romania, Spain, Switzerland
lain
belum menemukan
belum menemukan
Amerika Utara
Canada, USA
Mexico, USA
Amerika Selatan
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
Brazil, Kolumbia
deposito di oceania benua
Australia
Central Australia, Queensland, Western Australia
New South Wales, Queensland, Yorke Peninsula