Just thought that I would bring this place to everyone's attention. If you are anywhere near Kentucky and have never visited it, it's well worth checking out. They have a world class collection of Fluorite. I've bought quite a lot of good cutting material through them, and they are always getting new stuff in stock. They also schedule digs at local mines to get Fluorite.
They have a great Mineral Show in the summer (June 4th and 5th of 2016) that you'll want to attend too.http://www.clementmineralmuseum.org/