Asia
Russia, Turkey
Japan, Oman
Afrika
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
South Africa
Eropah
Germany, Greece, Iceland, Norway, Poland
France, Germany, Italy, Venezuela
lain
belum menemukan
pulau hawaii, mid-Atlantik ridge
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Brazil
belum menemukan
deposito di oceania benua
Australia
South Australia, Western Australia
Not Yet Found