The Collaborative International Dictionary of English v.0.48:
Mineralogist \Min`er*al"o*gist\, n. [Cf. F. min['e]ralogiste.] [1913 Webster] 1. One versed in mineralogy; one devoted to the study of minerals. [1913 Webster] 2. (Zool.) A carrier shell (Phorus). [1913 Webster]