1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
Cambodia, Russia, South Korea
1.1.2 Afrika
Egypt, Ethiopia, Ghana, South Africa
East Africa
1.1.3 Eropah
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
England, Germany, Hungary, Iceland, Scotland, Sweden
1.1.4 lain
tanah penggembalaan
pulau hawaii
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Cuba, Jamaica, USA
USA
1.2.2 Amerika Selatan
Bolivia, Brazil, Kolumbia, Ekuador, Paraguai
belum menemukan
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Western Australia
Victoria