Apophyllite Group from Calaveras-Baker Domain, North America Plate
USA | |
| Micro Probe Volume VI Number 4 |
| Mineralogy of 10 Geothermal boreholes drilled in and around the Newberry Caldera U.S. Geological Survey Professional Paper, Issue 1578 By Keith E. Bargar, Terry E. C. Keith 1999 |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
| Rudy Tschernich Zeolite Collection |
| Micro Probe Volume VI Number 4 |
Middle Fork Cliffs, Ritter, Grant County, Oregon, USA