deposito di benua timur
Asia
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India, Russia
Afrika
Uganda
South Africa
Eropah
Germany, Hungary, Italy, Spain
Iceland
lain
tanah penggembalaan, mid-Atlantik ridge
pulau hawaii
deposito di benua Barat
Amerika Utara
USA
Canada, USA
Amerika Selatan
Bolivia, Brazil
Brazil
deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
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