Image: Copper-38278
Copper-38278.jpg (600 × 402 pixels, file size: 80 KB, MIME type: image/jpeg)
Description: Copper Locality: Ontonagon County, Michigan, USA A 12.1-ounce nugget of natural native copper from the glacial drifts of Michigan, polished on one side to show its penny-bright luster, which contrasts nicely with the antique patina in the recessed areas. 8.5 x 5.8 x 3.1 cm. Ontonagon County locality at mindat.org.
Title: Copper-38278
Credit: http://www.mindat.org/photo-38278.html
Author: Robert M. Lavinsky
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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