Heulandite Subgroup from New Haven County, Connecticut, USA
USA | |
| Former Alfred E. Hammer collection |
| Moritz, Harold (n.d.) Personal Communication. |
| Schairer, John F. (1931): Minerals of Connecticut. Connecticut Geological and Natural History Survey Bulletin 51. |
| Rowan M. Lytle Collection |
| Recently collected by Jeremy Zolan (2005). |
| Visually identified by Mike Polletta. |
J. Zolan/M. Polletta observation |
Unnamed quarry, Waterbury, New Haven County, Connecticut, USA