A very beautiful example of bright, lustrous pyrite cubes on quartz.  These combinations are highly sought after, though I have never come across very many on any one trip-- this time i was able to get a few, of which this is the largest.  There is peripheral damage to the pyrite and a couple small chips, but the quartz crystals are intact as far as I can see-- and it displays exactly as shown.  It's a beautiful large cabinet piece.