My friend Cory found this rock. I have never seen an agate with amethyst in the middle of it. I think it is an extraordinary find! He picked this gem up while we were fishing a tributary river of Lake Superior. The great flood of June 2012 must have washed this out from someplace unknown?
Yes, they are found north of Two Harbors. Unusual, but not unheard of. I have one myself, it great find
The saturation of the amethyst on this specimen is exceptional. I agree with Jay they are unusual, but not unheard of. I have found two in central MN. Great find!