Chalcopyrite from Crown Point Township, Essex County, New York, USA
USA | |
| Jensen (1978) Minerals of New York State |
| .: New York State Museum Bull. 223,224, Newland, David H. (July-August 1919), The Mineral Resources of the State of New York: 72. |
USA | |
| Jensen (1978) Minerals of New York State |
| .: New York State Museum Bull. 223,224, Newland, David H. (July-August 1919), The Mineral Resources of the State of New York: 72. |