|
USA | |
| Gems and Minerals of America- Jay Ellis Ransom-1974 |
| John Burnham |
| Percival, James Gates. (1822), Notice of the locality of sulphate of barytes from which a specimen was analysed by Mr. G. T. Bowen and various other mineral localities in Berlin, Conn., American Journal of Science: s. 1, 5: 42-45. |
| Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston |
| Schooner, Richard. (1961): The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut. |
| John Burnham collection |
| King, Van (n.d.) Personal communcation. |
| Moritz, Harold (n.d.) Personal Communication. |
State Route 9 & State Route 71 Interchange, New Britain, Hartford County, Connecticut, USA