tuff dan andesit 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, Indonesia, Japan, Nepal, South Korea
Afrika
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania
Eropah
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom
lain
antarctica, pulau hawaii
belum menemukan
deposito di benua Barat
Amerika Utara
Canada, Costa Rica, Panama, USA
Mexico, USA
Amerika Selatan
Argentina, Bolivia, Brazil, Chili, Ekuador, Paraguai
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
deposito di oceania benua
Australia
Central Australia, Western Australia
New South Wales, New Zealand, Western Australia
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