Float copper in hall of minerals at Carnegie Museum of Natural History. Pittsburgh, PA.

Float copper in hall of minerals at Carnegie Museum of Natural History. Pittsburgh, PA.
Photo by Jim Steinhart © 2014, all rights reserved. (Ref: PATV755)

Click an index below to see this photo among related images:

Carnegie Museum of Natural History, Pittsburgh - Dinosaurs & Minerals
Captions List for Pittsburgh, PA

license home subjects tips