Smoky Quartz from Hancock County, Maine, USA
USA | |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
King, Van (n.d.) Personal communcation. | |
| Morrill & Hinckley, 1959. Maine Mines & Minerals, Vol. 2 |
| Rocks & Min.: 18:268. |