cadangan
deposito di benua timur
Asia
Bangladesh, China, India, Russia
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Eropah
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
lain
tidak tersedia
deposito di benua Barat
Amerika Utara
USA
Amerika Selatan
Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia