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