Calcite from Town of Monroe, Orange County, New York, USA
USA | |
| Geol. Survey of the State of New York, Geology of Orange Co., Roes, Heinrich (1895): 452. |
| Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1) New York Mineralogical Club |