Preiswerkite from North Carolina, USA
USA | |
Leonard S.Wiener and Sigrid Ballew,1995, Updated by Kenny Gay,2006, A Listing Of North Carolina Minerals,Geologic Note No.4 | |
| Genth,F.A,1891,The Minerals of North Carolina,pg.68 and 94 |
Dana, Edward Salisbury (1892) A System of Mineralogy (6th ed.) | |
| Genth F.A,1891,The Minerals of North Carolina,pg.66 and 103 |