Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
India
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
East Africa, Western Africa
Eropah
Bulgaria, England, Germany, Norway, Romania, Switzerland
England, Romania, Scotland
lain
belum menemukan
belum menemukan
Amerika Utara
USA
Canada, USA
Amerika Selatan
Brazil, Chili
belum menemukan
deposito di oceania benua
Australia
New Zealand, Queensland, South Australia, Western Australia
Central Australia, Western Australia