1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Bangladesh, China, India, Russia
China, India, Israel, Russia, South Korea, Thailand, Turkey
1.1.2 Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Ethiopia, Morocco, South Africa, Zimbabwe
1.1.3 Eropah
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
England, Italy, Norway, Scotland, Sweden, United Kingdom
1.1.4 lain
belum menemukan
tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
New Zealand, Queensland, Western Australia