1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
India
1.1.2 Afrika
Egypt, Ethiopia, Ghana, South Africa
Not Available
1.1.3 Eropah
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
Not Available
1.1.4 lain
tanah penggembalaan
antarctica
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
tidak tersedia
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Western Australia
Not Available