|
USA | |
| Beste, Bob (1996) Location Guide for Rockhounds in the United States (2nd ed.) Vol. 2 - Part II - Illinois to North Dakota. |
| Gems & Minerals 395:28-29 (1970). |
| E Harrington collection |
- Harris Creek Mining Sub-District
| specimen in my collection |
| |
| Erd, Richard C., Greenberg, Seymour S. (1960) Minerals of Indiana. Bulletin 18. Indiana Geological Survey |
| Erd, Richard C., Greenberg, Seymour S. (1960) Minerals of Indiana. Bulletin 18. Indiana Geological Survey |
| Erd, Richard C., Greenberg, Seymour S. (1960) Minerals of Indiana. Bulletin 18. Indiana Geological Survey |
| www.indiana.edu |
| E Harrington collection |
| Erd, Richard C., Greenberg, Seymour S. (1960) Minerals of Indiana. Bulletin 18. Indiana Geological Survey |
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| |
| Rob Lavinsky (ex. Edwin Skidmore and Robert Batic specimen) |
| Collecting on site |
| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
Crystal Cave, Cave City, Barren County, Kentucky, USA