GRD0207S0
M-143
Layered Gneiss
Unknown
None
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0
Ritter 154 › Cabinet 24 › Drawer A
medium-grained
Small sample of a gneiss composed of quartz-plagioclase-biotite-magnetite-garnet. The sample has continuous banding, quartz and garnet porphyroblasts, and is fine- to medium-grained.
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