author(s) : Sahama, Von Knorring and Lehtinen
date of publication : 1970
source : Bull.Geol.Soc.Finland,(42) p.223
formula : (Ce,Nd)W2O6(OH)3
comments about the origin : Von Knorring 1972 et 1976
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP