|Kyanite - easy to spot|
I also found some kyanite which is a gorgeous light blue and at least it's easy to spot - especially the one I saw, which was the size of a football.
Then we went to a small mining museum where they had huge BOULDERS of these dumortierite rocks just laying around all over the place. I mentioned that we should have just driven up and taken one of them but, apparently, that would not be what a true rock hound would do. Who makes up these rules?!