Asia
Japan, Oman
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
Afrika
South Africa
Cameroon, East Africa, Tanzania, Western Africa
Eropah
France, Germany, Italy, Venezuela
United Kingdom
lain
pulau hawaii, mid-Atlantik ridge
belum menemukan
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
belum menemukan
Bolivia, Brazil, Kolumbia, Ekuador
deposito di oceania benua
Australia
Not Yet Found
New South Wales, New Zealand, Queensland, Western Australia