Chlorargyrite from selected localities.
USA | |
| Emmons and Becker (1885) Statistics and Technology of the precious Metals. Census reports Tenth census. June 1, 1880, Volume 13 By United States. Census office. 10th census, 1880, United States. Census Office |
| SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills" |