1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
1.1.2 Afrika
Rwanda, Tanzania
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
1.1.3 Eropah
Not Yet Found
Bulgaria, England, Germany, Norway, Romania, Switzerland
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
New Zealand, Queensland, South Australia, Western Australia