Heulandite Subgroup from selected localities.
USA | |
| Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p223-224 |
Jensen (1978) Minerals of New York State, 42-43 (Januzzi, 1966, 1989) (Trainer, 1939). |
USA | |
| Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p223-224 |
Jensen (1978) Minerals of New York State, 42-43 (Januzzi, 1966, 1989) (Trainer, 1939). |