Afrika
Uganda
Western Africa
Eropah
Germany, Hungary, Italy, Spain
Austria, Belarus, Romania, Switzerland, United Kingdom
lain
tanah penggembalaan, mid-Atlantik ridge
-
Amerika Utara
USA
Canada, USA
Amerika Selatan
Bolivia, Brazil
Brazil, Kolumbia
deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New Zealand, Western Australia