GRD01WCS0
M-150
Schist
Paleozoic
251.0
-
542.0
0
Ritter 154 › Cabinet 14 › Drawer C
fine-grained
Sample of chlorite-magnetite schist. Porphyroblasts of magnetite crystals. Good foliation. Sample is all scratched up. Original description: prochlorite enclosing magnetite.
-
-
Maryland
Old Fields Mine, Harford county