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USA | |
| Wilson, W.F., McKenzie, B.J. (1978) Mineral Collecting Sites in North Carolina. Information Circular 24. North Carolina Division of Mineral Resources |
| USGS Bull 1042G |
| Absher and McSween H.Y Jr, 1986, Winding Stair Gap granulite |
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| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Betts, John (n.d.) John Betts website listing. |
| E.WM.Heinrich,1950,Paragenesis of the Rhodolite Deposit,Masons Mountain,North Carolina,The American Mineralogist,Vol.35 |
| Eckert, J. O., Jr., 1984, Stratigraphy, structure, and metamorphism in the east half of the Wayah Bald quadrangle, North Carolina: ... |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Dana 6: 1077. |
Jacobs Ruby Mine, Cowee Valley, Macon County, North Carolina, USA