By: magic-gigapans
License: Creative Commons Non Commercial ⧉

Uploaded: 6 May 2020
Last Updated: 7 May 2020

670 megapixels
30,344 x 22,084 pixels
101.1 in X 73.6 in at 300dpi

Archean conglomerate with detrital pyrite, indicative of a low-oxygen atmosphere. Sample is 16.5 cm across at its widest point, and was provided by Dr. Jay Kaufman of the University of Maryland.