Grandy, James W., 1982, Guide to Eastern Rocks and Minerals, Hancock House Publishers, Ltd: British Columbia, Canada.
Jensen, D.E., 1978, Minerals of New York State, Ward Press: Rochester, New York.
Miller, Clarence E., 1972, Minerals of Rhode Island, ed. Don Hermes, Department of Geology, University of Rhode Island: Providence, Rhode Island.
Thompson, W.B., D.L. Joyner, R.G. Woodman, and V.T. King, 1998, A Collector's Guide to Maine Mineral Localities, 3rd ed., Maine Geological Survey: Augusta, Maine.