Image: Ontonagon Copper Boulder
Size of this preview: 800 × 536 pixels. Other resolutions: 320 × 214 pixels | 1,913 × 1,282 pixels.
Original image (1,913 × 1,282 pixels, file size: 998 KB, MIME type: image/jpeg)
Description: Photograph of the Ontonagon Copper Boulder, off display at the Smithsonian Institution National Museum of Natural History.
Title: Ontonagon Copper Boulder
Credit: Own work
Author: Ian Shackleford
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No
Image usage
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