This is a special specimen for several reasons. Firstly, it is a beautiful piece from an old and historic locality; with large crystal size and intense color for the locale. It is also actually an older specimen of far higher in quality than anything found recently on the old mine dumps here. Secondly, it has a unique crystal habit, with the modified edges you can see so clearly. Finally, most specimens from here feature crystals jumbled together in a solid mass. THIS ONE has the rare quality of individual crystals, perched on the matrix. I had not seen equal quality, for my tastes, for sale back in 2001 when I sold this to Ed out of the WH Leithauser Collection, and I still haven't seen a better one for sale. Comes with custom base.