travertine dan nephelinite cadangan
Afrika
Not Yet Found
Rwanda, Tanzania
Eropah
Austria, Italy, Portugal, United Kingdom
Not Yet Found
lain
belum menemukan
pulau hawaii
Amerika Utara
Canada, USA
Canada, USA
Amerika Selatan
Argentina, Bolivia, Ekuador
Kolumbia
deposito di oceania benua
Australia
Not Yet Found
Not Yet Found