|
USA | |
| [Chalcedony var. Agate] Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Kaltenbach,Kelley J.,(2007) Geology And Petrology Of The Fletcher Limestone Company Quarry,Fletcher,Henderson County,North Carolina,University of North Carolina,Wilmington |
| Scott D. Giorgis.,Russell W. Mapes.,and Bredan R.Bream (2002) The Walker Top Granite : Acadian granitoid or eastern Inner Piedmont basement ? Carolina Geological Society Annual Field Trip October 19-20 ,2002 |
| Bureau of Mines, Sep -1995 |
- Zirconia Pegmatite Mining District
| Wilson, W.F., McKenzie, B.J. (1978) Mineral Collecting Sites in North Carolina. Information Circular 24. North Carolina Division of Mineral Resources |
- Zirconia (Tuxedo Station)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |