Asia
Japan, Oman
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Eropah
France, Germany, Italy, Venezuela
Bulgaria, England, Germany, Norway, Romania, Switzerland
lain
pulau hawaii, mid-Atlantik ridge
belum menemukan
Amerika Utara
Canada, USA
USA
Amerika Selatan
belum menemukan
Brazil, Chili
deposito di oceania benua
Australia
Not Yet Found
New Zealand, Queensland, South Australia, Western Australia