1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Russia, Turkey
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
1.1.2 Afrika
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
Namibia, Nigeria, South Africa
1.1.3 Eropah
Germany, Greece, Iceland, Norway, Poland
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
Canada, USA
Barbados, Canada, Mexico, Panama, USA
1.2.2 Amerika Selatan
1.3 deposito di oceania benua
1.3.1 Australia
South Australia, Western Australia
New South Wales, New Zealand