Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Japan, Oman
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
South Africa
Eropah
United Kingdom
France, Germany, Italy
lain
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pulau hawaii, mid-Atlantik ridge
Amerika Utara
USA
Canada, USA
Amerika Selatan
Kolumbia
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deposito di oceania benua
Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
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