| SD: | QMP, DDH-160, 96', Bingham Mine, Utah |
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Top: Disseminated sericite replaces hydrothermal K-feldspar (dark colored area). Relic area of plagioclase within hydrothermal K-feldspar also replaced by sericite and kaolinite. (TBXP).
25 X, Width is 3 mm. |