This is a GREAT marble that looks WAY better in hand than I was able to capture in the pics. That fantastic rainbow thunderbolt is backed by nice purple dichro, and I just couldn't get that dichro to sparkle in the pictures like it does in real life, in hand. The rainbow and dichro are twisted nicely in crystal clear glass, with an added bonus of a sweet opal resting on the dichro side. Unique and fantastic, this will be a marble you'll cherish!