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