deposito di benua timur
Asia
India
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Afrika
-
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Eropah
-
United Kingdom
lain
antarctica
-
deposito di benua Barat
Amerika Utara
USA
USA
Amerika Selatan
-
Kolumbia
deposito di oceania benua
Australia
-
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula