1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Not Yet Found
India, Saudi Arabia, Singapore, South Korea
1.1.2 Afrika
Not Yet Found
Ethiopia, Western Africa
1.1.3 Eropah
Bulgaria
England, Georgia, Switzerland, United Kingdom
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
Central Australia, New South Wales, New Zealand, Western Australia