Smectite Group from Grant County, Oregon, USA
USA | |
| Rudy Tschernich Zeolite Collection |
| Rudy Tschernich Zeolite Collection |
| Rudy Tschernich Zeolite Collection |
| Rudy Tschernich Zeolite Collection |
Tschernich, Rudy D., Wise, W. S. (1982) Paulingite: variations in composition. American Mineralogist, 67. 799-803 | |
Rudy Tschernich Zeolite Collection |
Upper Ritter Quarry, Ritter, Grant County, Oregon, USA