| Archive Reference / Library Class No. | LS/553.9 |
| Title | The cause of coloration in Derbyshire Blue John banded fluorite and other blue banded fluorites. |
| Date | 1971 |
| Publication Date | 1971 |
| Author | MacKenzie, K. J. D. |
| Green, J. M. |
| Repository | Derbyshire Record Office |
| Further Information | Article from Mineralogical Magazine, December 1971, Vol. 38 |
| Term | Blue John |
| Minerals |