1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
1.1.3 Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
United Kingdom
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, Queensland, Western Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula