The front of this specimen is a seam of drusy quartz crystals showing patches of proustite here and there. At the top are a couple of clusters of small, well, formed, scalenohedral crystals of proustite. My photo is not that great but they are very nice crystals! The specimen was in the R.W. Dietz collection and comes with the old labels. Specimens from Schneeberg don't come around all that often these days!