Magnetite from selected localities.
USA | |
| Milton, C., & Milton, D. J. (1958). Nickel-gold ore of the Mackinaw mine, Snohomish County, Washington. Economic Geology, 53(4), 426-447. |
| Huntting, M.T. (1956) Inventory of Washington Minerals-Part II, Metallic minerals. Washington Division of Mines and Geology Bulletin 37, Vol, 1, 428 pages. |
| Derkey, R., Joseph, N., Lasmanis, R. (1990) Metal Mines of Washington-Preliminary Report. Washington Division of Geology and Earth Resources Open File Report 90-18, Washington State Department of Natural Resources, 277 pages. |