1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Bangladesh, China, India, Israel, Jordan, Russia, Syria, Thailand, Turkey
Russia, South Korea
1.1.2 Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Western Africa
1.1.3 Eropah
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Sweden, Switzerland
United Kingdom
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
Central Australia, Western Australia