Figure 1.
Virtual rock created with SketchUp and geolocated at collection site, Rheems Quarry, Pennsylvania, USA. Online version can be rotated, and is available at dx.doi.org/10.1130/GSATG257.S1. ©2016 Google Inc. Image: Landsat. Inset: Photographing hand specimen at arm’s length. Background is irrelevant as it will be cropped.