1. Ryerson Hill quarry, Maine: Unusual rutile find;Alexander L.;Rocks & Minerals,2022
2. King, V., ed. 2000. Mineralogy of Maine. Vol. 2: Mining history, gems, and gemology. Maine Geological Survey.
3. King, V., and E. Foord. 1994. Mineralogy of Maine, Vol. 1: Descriptive mineralogy, Maine Geological Survey.
4. Surface microtopographic study of pyrite crystals;Endo Y.;Bulletin of the Geological Survey of Japan,1978
5. Positive and negative striations in pyrite;Endo Y.;American Mineralogist,1973