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1,691 questions

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Two rocks, lake superior, near Whitefish bay where the edmund fitzgerald sank

0 votes

One is an agate. Any idea what the second one is?alt text

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asked Aug 27, 2014 by Weasel (33,970 points)

3 Answers

0 votes

They both look like Lake Superior Agate to me. Did you test hardness?

answered Aug 28, 2014 by hershel (46,460 points)
0 votes

It is translucent. I thought those were copper inclusions

answered Aug 28, 2014 by Weasel (33,970 points)
0 votes

Copper inclusions in Lake Superior Agates are definitely possible - there was an article recently about this in the Rocks and Minerals magazine. Take a look at this article: http://www.rocksandminerals.org/Back%20Issues/2012/July-August%202012/copperbanded_abstract.html

answered Sep 1, 2014 by hershel (46,460 points)
 


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