I Sphere The Unknown

I found the rock I made this sphere from in Lake Michigan off the shore of Charlevoix, MI. It is one of my favorite spots to find Petoskey stones but that day I stumbled across this beauty. I haven’t seen one like this before, especially with the greens in it. So if you happen to know what it is made of, please drop me a note or leave a comment. Anyway, I hope you think it is cool as I think it is!

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