Rainy day rock hunts are the best. Look up ukanite. I think that's what your rock is. The stuff polishes up pretty nice. I'm looking for a piece to carve a pipe out of. Gary
If you have a PO box or something, I'll send it to you.
Otherwise it'll go in my rock bed and be consumed by the Earth.
I like imagining that someday, long after I am gone, that hopefully a Father/son combo are out hunting rocks and happen across my old rock bed.
I'd certainly love to see their faces when they get to the various types of chalcedony layer!
Several copper replacement agate's in there!