GRD01VRS0
M-181
Phyllite
Paleozoic › Ordovician › Middle Ordovician
461.0
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472.0
0
Ritter 154 › Cabinet 14 › Drawer E
fine-grained
Dark grey/black sample with well-defined slaty cleavage with crenulations. Fine-grained phyllosilicates with rust-colored vugs where Fe-minerals once were. Medium to large-sized pyrite crystals. Original description: pelitic schist, Walloomsac Formation?
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New York
Dutchess County
Latitude: 41.8°
Longitude: -73.7°