These very uniquely blue fluorites came out about 1-2 years ago, but usually consisted of plates of somewhat smaller, densely packed crystals.  The find was long depleted and specimens mostly dispersed into collections, but I did find this one--  I think the distinctness and size of the crystal prevented it from getting sold in a lot of mediocre pieces.  With that said, I ended up paying a bit of a premium for it, but as with a number of pieces in this update, it was different and beautiful enough that I wanted to be able to offer it on the website. China is well known for its green fluorite, and to a lesser extent its purples, but blue has never been a particularly common color from its various mines.