A cluster of very transparent cubic fluorite crystals perched on the edge of a double terminated quartz crystal. The flourites are included by thousands of hair-like crystals of boulangerite, which are easily visible thanks tot he transparency of the fluorite. There are a few nicks on the edges of the fluorite cluster, you can somewhat see this in the picture. Either way, I thought this was an unusual specimen for the locality-- virtually all the fluorites from Yaogangxian are purple cubes, this one had the boulangerite association, and the fluorite was aesthetically positioned on the quartz,