|
France | |
|
| Grim, 1968. Clay Mineralogy, 2nd ed., p.47 |
|
Germany | |
|
| Schüller, A., and Grassmann, H. (1949): Contributions to Mineralogy and Petrology 2, 269-278. |
|
USA | |
|
| NBMG files No. 29600035 |
|
| USGS Bull 723 |
- Bingham District (West Mountain District)
| UGMS Bull 117 Minerals and Mineral Localities of Utah |
|
| UGMS Bull 117 Minerals and Mineral Localities of Utah |
- Amelia (Amelia Court House)
| Minerals of Virginia, 1990 by R. V. Dietrich |
|
| USGS Bulletin 248B (1952) |