Asia
Not Yet Found
Afghanistan, Indonesia, Japan, Russia
Afrika
Uganda
Ethiopia, Kenya, Tanzania
Eropah
Germany, Hungary, Italy, Spain
Greece, Hungary, Iceland, Italy, Turkey
lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
Amerika Utara
USA
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA
Amerika Selatan
Bolivia, Brazil
Argentina, Chili, Ekuador, peru
deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New Zealand, Western Australia