Heulandite Subgroup from King County, Washington, USA
USA | |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
USA | |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
Raging River Quarry, King County, Washington, USA