tuff dan laterit cadangan
cadangan
deposito di benua timur
Asia
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
India
Afrika
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
East Africa, Western Africa
Eropah
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
England, Romania, Scotland
lain
antarctica, pulau hawaii
belum menemukan
deposito di benua Barat
Amerika Utara
Canada, Costa Rica, Panama, USA
Canada, USA
Amerika Selatan
Argentina, Bolivia, Brazil, Chili, Ekuador, Paraguai
belum menemukan
deposito di oceania benua
Australia
Central Australia, Western Australia
Central Australia, Western Australia
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