1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Indonesia, Saudi Arabia, South Korea
India, Russia
1.1.2 Afrika
Eritrea, Ethiopia, Ghana, South Africa, Western Africa
South Africa
1.1.3 Eropah
England, Finland, France, Germany, Great Britain, Greece, United Kingdom
Iceland
1.1.4 lain
belum menemukan
pulau hawaii
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
Central Australia, Western Australia
Not Yet Found