Glauconite from Utah, USA
USA | |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |
| Färber, Gunnar (n.d.) Personal Communication, Gunnar Färber Mineralien. |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |