This piece of chalcedony is quite remarkable. We sometimes see that bubbly formation but it is quite rare. This is a perfectly formed example of it. If you turn it on its side you can even see the swirls it grew in. This Scottish crystal also has a bit of pink in the bottom there. I wonder if that's the colour in the middle? Anyway it sits on a couple of Waterlines. I'm disappointed by the photos for this one so do check out the video. It's class.