Chlorite Group from
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| U.S. Borax |
| Am Min 49:543-555 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Skinner, B.J., Erd, R.C., Grimaldi, F.S. (1964) Greigite, the thio-spinel of iron, a new mineral. American Mineralogist: 49: 543-555. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |