this post was submitted on 24 Oct 2023
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Geology

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‐-----------------------‐-update 11-11‐----------------------

After more research and some lucky talks I believe this to be epidote from tailings out of the Wolverine Mine, a few miles from where I found these pieces.

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Was rock hounding on the southern shore of Lake Superior. Found these green crystal deposits that formed like geodes, specimens are small, the largest is about the size of a corn kernel. A local said it could be chlorasolite but I don't think it matches based on color and clarity. Any thoughts would be appreciated!

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[–] [email protected] 1 points 1 year ago

Better send some samples to your local friendly mineralogist. Usually the geological survey of your home country should be able to help. There’s also a good chance these rocks contain boring silicon oxide hydroxide whatever with a little it of calcium and sodium thrown in for color. It’s too early to tell without having them properly analyzed.