Azurite from Cave-in-Rock Mining Sub-District, Hardin County, Illinois, USA
USA | |
| Mineralogical Record, v. 28, no. 1, 1997 |
| Mineralogical Record (1997) 28:3-49 |
Mineralogical Record (1997) 28:3-49 Rocks & Minerals: 63: 359. | |
| Denny, F. B., Nelson, W. J., Breeden, J. R., Lillie, R. C. (2020). Mines in the Illinois Portion of the Illinois-Kentucky Fluorspar District, Illinois State Geological Survey Circular 604. |
Mineralogical Record (1997) 28:3-49 | |
| Mineralogical Record (1997) 28:3-49 |
Hastie's Quarry, Spar Mountain, Cave-In-Rock Mining Sub-District, Hardin County, Illinois, USA