|
USA | |
- Clackamas River localities
| Personally collected by Dan R. Lynch (2011) |
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| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
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| [var. Moss Agate] MacFall, P.M. (1951) Gem Hunter's Guide (1st ed.). Science and Mathematics Publishing Company, 187 pages. |
|
| Marshall W. Gannett and Keith E. Bargar
1981 Volcanic stratigraphy and secondary mineralization of USGS Pucci geothermal test well, Mount Hood, Oregon, Open-File Report 81-1330. |
|
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
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| R. Colburn, The Formation of Thundereggs (Lithophysae), 2004 rev, pp 112, 119, 282, 336, 363, 368, 447-478. |
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| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
|
| [var. Carnelian] Bruce Kelley Collection |
|
| Tschernich, Rudy W. (1996) Zeolites from Kalama, Cowlitz County, Washington. Micro Probe 8-3 pp 15-1 |
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| [var. Carnelian] Dake, H. C. (1956) Northwest Gem Trails - A Field Guide for the Gem Hunter, Mineral Collector and Tourist (2nd ed.) Gembooks. |
|
| [var. Carnelian] |
Freida deposit, Wasco County, Oregon, USA