Braunite from SCAB Domain, North America Plate
USA | |
| Rocks & Min.: 64:185. |
(1917) Useful minerals of the United States. Bulletin Vol. 624. US Geological Survey doi:10.3133/b624 | |
| Stose, G.W.,and Schrader, F.C. (1923) Manganese Deposits Of East Tennessee : USGS Bulletin 737 |