1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Russia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
1.1.2 Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
1.1.3 Eropah
England, Hungary, Iceland, United Kingdom
Bulgaria, England, Germany, Norway, Romania, Switzerland
1.1.4 lain
antarctica, tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Kolumbia, Ekuador
Argentina, Bolivia, Brazil, Chili, Kolumbia, Ekuador, peru
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia