TY - RPRT TI - Significance of tourmaline-rich rocks in the North Range group of the Cuyuna iron range, east-central Minnesota AU - J.M. Cleland AU - G. B. Morey AU - P.L. McSwiggen PY - 1996 DO - 10.2113/gsecongeo.91.7.1282 UR - https://pubs.usgs.gov/publication/70018052 ID - 70018052 ER -