deposito di benua timur
Asia
India, Russia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Eropah
Iceland
Bulgaria, England, Germany, Norway, Romania, Switzerland
lain
-
-
deposito di benua Barat
Amerika Utara
Canada, USA
USA
Amerika Selatan
Brazil
Brazil, Chili
deposito di oceania benua
Australia
-
New Zealand, Queensland, South Australia, Western Australia