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USA | |
| Kesler,T.L.,1942,The Tin-Spodumene Belt Of The Carolina USGS Bulletion No.936-J |
| Genth,F.A and Kerr,W.C,1881,Mineral and Mineral Localities of North Carolina,Geologic Survey |
| Genth,F.A and Kerr,W.C, 1881,Mineral Localities of North Carolina, Geologic Survey, North Carolina |