1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Israel, Russia, South Korea, Thailand, Turkey
China, India
1.1.2 Afrika
Ethiopia, Morocco, South Africa, Zimbabwe
Morocco, Namibia
1.1.3 Eropah
England, Italy, Norway, Scotland, Sweden, United Kingdom
Austria, Italy, Romania, Spain, Switzerland
1.1.4 lain
tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Bahamas, Canada, USA
Mexico, USA
1.2.2 Amerika Selatan
Brazil, Kolumbia, venezuela
Brazil, Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland, Western Australia
New South Wales, Queensland, Yorke Peninsula