Malachite from selected localities.
USA | |
| Rocks & Min.: 19:306-309. |
Specimen in the Robert Rybnicky collection; Warren Cummings, personal communication, 2007 | |
| Dana 6:1066. |
Mineral Collector: 2:138-139, Ehrman, A.H. (1895); Rocks & Min.: 59:157-183, Peters, Joseph J. (1984). | |
| Lapidary Jour.: 32:1700-1720, Mins. of the Watchungs, Part II, Vitali, G. (1978); Rocks & Min.: 59:157-183 (1984), Peters, J.J. |
| Observed, David S. Bernstein-February of 2012; |
| Cummings, W. L., 2008, Personal communication |
Houdaille Quarry, Little Falls Township, Passaic County, New Jersey, USA