1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
1.1.2 Afrika
Morocco, Namibia
Namibia, Nigeria, South Africa
1.1.3 Eropah
Austria, Italy, Romania, Spain, Switzerland
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
1.1.4 lain
belum menemukan
tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Mexico, USA
Barbados, Canada, Mexico, Panama, USA
1.2.2 Amerika Selatan
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, Yorke Peninsula
New South Wales, New Zealand