Search on REE
REE: Rare Earth Elements include the Lanthanide Series (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and Y. See E. Nickel and J. Mandarino, Procedures involving the I.M.A. Commission on new minerals and mineral names, and guidelines on mineral nomenclature (Schweiz. Mineral. Petrogr. Mitt. 67 (1987), 185-210); see also: P. Bayliss and A. Levinson, A system of nomenclature for rare earth mineral species: revision and extension (Am. Min. 73 (1988), 422-423).
REE = rare earth elements: usually LREE, HREE, and also Y, Sc, and also Th, U
HREE = heavy rare earth elements: Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and also Y, and less commonly Eu, Lu
LREE = light rare earth elements; La, Ce, Pr, Nd, SmWithin your Search, you can include REE (all rare earth elements) AND exclude some specific REE such as La, Ce, Pr, ... Examples: see table below:
| Include string | Exclude string | Results |
| REE | [none] | all minerals whose formula include one or more REE Rare Earth Elements |
| one or more Rare Earth Elements name, e.g. La Ce | [none] | all minerals whose formula include "La" and/or "Ce" |
| REE | Y Ce | all minerals whose formula include one or more Rare Earth Elements but do not contain "Y" nor "Ce" |
| one or more Rare Earth Elements name. e.g. La Ce | REE | it makes no sense! |
