Levinsonite-(Y)
Levinsonite- is a rare organic mineral named in honor of Alfred A. Levinson, professor of mineralogy at the University of Calgary. It was named in part because of his origination of the internationally used nomenclature for rare-earth minerals, the Levinson modifier, which is a standard in mineralogical nomenclature and allows for the more precise identification and classification of rare-earth minerals.
The type material for Levinsonite- is kept at the University of Michigan, and the Smithsonian National Museum of Natural History in Washington, D.C.