GRD029US0
M-318
Relict Textures
Unknown
None
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0
Ritter 154 › Cabinet 24 › Drawer H
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Fine-grained quartz-biotite-potassium feldspar. A large potassium feldspar crystal. Relict grains. Original label: Metagreywacke. Quartz-biotite.
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NW Corner LB Quad