7ghkmi ((CHALCOPYRITE, PYRITE, MAGNETITE)), French Creek Mines, St Peters, Chester County, Pennsylvania, 5.5 x 4 x 1.5 cm, Miniature | |
Classic location in Pennsylvania for Chalcopyrite and Pyrite. This specimen has Chalcopyrite but features nice octahedral Pyrite. The matrix also has massive Chalcopyrite and Magnetite. |