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