riolit dan breksi cadangan
cadangan
deposito di benua timur
Asia
China, India
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Namibia, Nigeria, South Africa
Eropah
Germany, Iceland, Ireland, Italy, Spain
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
lain
belum menemukan
tanah penggembalaan
deposito di benua Barat
Amerika Utara
Canada, USA
Barbados, Canada, Mexico, Panama, USA
Amerika Selatan
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
Brazil
deposito di oceania benua
Australia
New Zealand, Queensland, Western Australia
New South Wales, New Zealand
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