Heavy accessory minerals have been separated from specimens of granite gneiss taken in a traverse across the Beartooth Plateau. Prominent accessories are biotite, magnetite, ilmenite, zircon, apatite, epidote and titanite. Characteristics of zircon, apatite and titanite from these samples are described.
Proceedings of the Iowa Academy of Science
©1939 Iowa Academy of Science, Inc.
Gwynne, C. S.
"Characteristics of Heavy Accessory Minerals in a Pre-Cambrian Granite Gneiss,"
Proceedings of the Iowa Academy of Science, 46(1), 251-251.
Available at: https://scholarworks.uni.edu/pias/vol46/iss1/63