Gonnardite from Washington, USA
USA | |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
| Micro Probe Vol.7 No.9 Spring '94 |
| Rudy Tschernich Zeolite Collection |
| Micro Probe Vol. 7 No. 10 |
| Micro Probe Volume VIII Number 9 |
Rudy Tschernich Zeolite Collection |
200 / 237 Road Quarry, Wolf Point, Cowlitz County, Washington, USA