Mackinawite from Michigan, USA
USA | |
| Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025 |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |