1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
1.1.2 Afrika
Cameroon, East Africa, Tanzania, Western Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
1.1.3 Eropah
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
Bolivia, Brazil, Kolumbia, Ekuador
Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, Western Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula