Asia
Japan, Oman
Not Yet Found
Afrika
South Africa
Egypt
Eropah
France, Germany, Italy, Venezuela
Finland, Germany, Italy, Romania, Sweden, Turkey
lain
pulau hawaii, mid-Atlantik ridge
belum menemukan
Amerika Utara
Canada, USA
USA
Amerika Selatan
belum menemukan
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru
deposito di oceania benua
Australia
Not Yet Found
New Zealand, South Australia, Western Australia