|
USA | |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| www.mindat.org (2003) https://www.mindat.org/min-4523.html Found with quartz crystals in a nice vug from material collected Oct 2021. Lloyd W. Alexander |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| |
| King, Van (n.d.) Personal communcation. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| www.mindat.org (2003) https://www.mindat.org/min-4523.html Found during ongoing study of Ryerson Hill by Lloyd W. Alexander 2021 |
| King, Van (n.d.) Personal communcation. |
Black Mountain Quarry, Rumford, Oxford County, Maine, USA