1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
Rwanda, Tanzania
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
1.1.3 Eropah
Not Yet Found
Germany, Greece, Iceland, Norway, Poland
1.1.4 lain
pulau hawaii
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
South Australia, Western Australia