Afrika
Egypt
South Africa
Eropah
Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom
Germany, Greece, Italy, Scotland, Turkey
lain
-
tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
USA
Canada, USA
Amerika Selatan
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru
Bolivia, Brazil, Kolumbia, venezuela
deposito di oceania benua
Australia
New Zealand, Western Australia
New Zealand, Queensland