Dufrénoysite from Balmat, Balmat-Edwards Zinc Mining District, St. Lawrence County, New York, USA
USA | |
| Steven C. Chamberlain & George W. Robinson (2013) Collector's Guide to the Minerals of New York State. Schiffer Books. |
Chamberlain, Steven C., Robinson, George W., Robinson, Susan M. (2023) New York State: A Topographic Mineralogy (1st ed.) Self published. 352pp. |