Chalcopyrite from selected localities.
USA | |
| Pogue, J. E. Jr. (1910) The Cid Mining District of Davidson County, North Carolina: North Carolina Geological and Economic Survey (NCGS) Bulletin No.22. 144p. |
| USGS Prof Paper 610 "Principal Gold Producing Districts of the United States" |
Pogue, J. E. Jr. (1910) The Cid Mining District of Davidson County, North Carolina: North Carolina Geological and Economic Survey (NCGS) Bulletin No.22. 144p. |