GRD0203S0
M-407
Non-layered Gneiss
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Ritter 154 › Cabinet 24 › Drawer B
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Quartz-plagioclase-pyrite gneiss. Weakly to moderately foliated (discontinuous banding). Coarse- to very coarse-grained. From near an ore deposit (?). Not a nice example of a gneiss.
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