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| | Fairfield Utah Varisite nodules (Site not responding. Last check: 2007-11-04) |
 | | The alteration history can be divided into four stages: In the first stage, quantitatively the most important, the bulk of the pseudowavellite was deposited with some deltaite, then millisite and wardite with some deltaite and lehiite, and finally more pseudowavellite and deltaite. |
 | | The second stage comprises the crystal-forming minerals in cavities of variscite and pseudowavellite; these are, in their probable sequence, gordonite, englishite, montgomeryite, overite, and sterrettite. |
 | | Three new phosphate minerals, overite, montgomeryite, and sterrettite, were found in the course of the study, and full descriptions of them are given elsewhere (Larsen, 1940; Larsen and Montgomery, 1940). |
| www.minsocam.org /MSA/collectors_corner/arc/fairfield1.htm (6432 words) |
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