The new mineral, priscillagrewite-(Y), is a member of the Garnet Group, rich in zirconium and yttrium, and was discovered in pyrometamorphic rocks (rocks heated by natural combustion of hydrocarbons) in the Transjordan plateau, close to Amman, Jordan. These rocks are the source of green stone beads known from Neolithic archeological sites in the Near East. The naming honors Grew's contributions to metamorphic petrology and geoarcheology.
The International Mineralogical Association currently recognizes 5,700 mineral species. Only about 100 of them have been named after women.
"As far as I know, I am the first Bryn Mawr graduate to have a new mineral named after me," says Grew.
Researchers Irina Galuskina and Evgeny Galuskin of the University of Silesia discovered the garnet, and decided to honor Grew in part because in 1966 she obtained the first images of oscillatory zoning of manganese in a garnet. As this Nebraska Today article puts it, Grew's discovery "was a major geological achievement in a career that would come to be defined by them."
Grew is a Senior Fellow of the Mineralogical Society of America, and in 1999 was awarded the American Geosciences Institute Medal in Memory of Ian Campbell for Superlative Service to the Geosciences.
She continues to serve as UNL coordinator for the Native American Graves Protection and Repatriation Act, under which Native American human remains from past university archaeological collections are returned to tribes through a complex federal process. She is a member of the finance committee of the International Union of Geodesy and Geophysics for the term 2019-2023 and is a faculty fellow of the Daugherty Water for Food Global Institute.