1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
India
1.1.2 Afrika
Namibia, Nigeria, South Africa
Not Available
1.1.3 Eropah
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
Not Available
1.1.4 lain
tanah penggembalaan
antarctica
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Barbados, Canada, Mexico, Panama, USA
USA
1.2.2 Amerika Selatan
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand
Not Available