Aggregates Corp. Quarry, Indianapolis, Marion County, Indiana CLOSED TO
COLLECTING IN EARLY 1990’s
aggregates of octahedral and modified cubic crystals of Pyrite occurring in the
lower New Albany Shale, just above the contact with the underlying North Vernon
Limestone, from the middle and late Devonian and early Mississipean age.
260-320 million years ago. Huizing and Russell, 1986.