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Schist |
 | | Schists have intermixed quartz, feldspar, and mica (biotite and/or muscovite), and often amphibole. |
| | Schists are hard to photography and capture their details; all the minerals tend to be mashed together. |
| | Schists are typically associated with major mountain building events when shales or clay rich sandstones (wackes) are metamorphosed through depth of burial, and proximity to batholiths (click picture for larger version). |
| csmres.jmu.edu /geollab/Fichter/MetaRx/Rocks/schist1.html (223 words) |
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