1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
Not Yet Found
1.1.2 Afrika
Namibia, Nigeria, South Africa
Ethiopia, Ghana, Western Africa
1.1.3 Eropah
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
England
1.1.4 lain
tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Brazil
Argentina, Bolivia, uruguay
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand
Central Australia, South Australia, Western Australia